refactor(global): cleanup redundant availability checks and update sample apps audit (#16143)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: ncooke3

FirebaseAnalytics/Sources/Analytics+SwiftUI.swift

@@ -17,7 +17,6 @@
   import SwiftUI
 
   /// Custom view modifier to allow for easily logging screen view events.
-  @available(iOS 13.0, macOS 10.15, macCatalyst 13.0, tvOS 13.0, *)
   @available(watchOS, unavailable)
   struct LoggedAnalyticsModifier: ViewModifier {
     /// The name of the view to log in the `AnalyticsParameterScreenName` parameter.
@@ -42,7 +41,6 @@
     }
   }
 
-  @available(iOS 13.0, macOS 10.15, macCatalyst 13.0, tvOS 13.0, *)
   @available(watchOS, unavailable)
   public extension View {
     /// Logs `screen_view` events in Google Analytics for Firebase when this view appears on screen.

FirebaseAuth/Sources/Swift/Auth/Auth.swift

@@ -74,7 +74,6 @@ import FirebaseCoreExtension
   }
 #endif
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 extension Auth: AuthInterop {
   /// Retrieves the Firebase authentication token, possibly refreshing it if it has expired.
   ///
@@ -144,7 +143,6 @@ extension Auth: AuthInterop {
 /// Manages authentication for Firebase apps.
 ///
 /// This class is thread-safe.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @preconcurrency
 @objc(FIRAuth) open class Auth: NSObject {
   /// Gets the auth object for the default Firebase app.
@@ -261,7 +259,6 @@ extension Auth: AuthInterop {
 
   /// Sets the `currentUser` on the receiver to the provided user object.
   /// - Parameter user: The user object to be set as the current user of the calling Auth instance.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func updateCurrentUser(_ user: User) async throws {
     return try await withCheckedThrowingContinuation { continuation in
       self.updateCurrentUser(user) { error in
@@ -427,7 +424,6 @@ extension Auth: AuthInterop {
   /// - Parameter email: The user's email address.
   /// - Parameter password: The user's password.
   ///  - Returns: The `AuthDataResult` after a successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @discardableResult
   open func signIn(withEmail email: String, password: String) async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
@@ -485,7 +481,6 @@ extension Auth: AuthInterop {
   /// - Parameter email: The user's email address.
   /// - Parameter link: The email sign-in link.
   ///  - Returns: The `AuthDataResult` after a successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func signIn(withEmail email: String, link: String) async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
       self.signIn(withEmail: email, link: link) { result, error in
@@ -584,7 +579,6 @@ extension Auth: AuthInterop {
     /// protocol, this is used for presenting the web context. If nil, a default AuthUIDelegate
     /// will be used.
     /// - Returns: The `AuthDataResult` after the successful signin.
-    @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
     @available(tvOS, unavailable)
     @available(macOS, unavailable)
     @available(watchOS, unavailable)
@@ -683,7 +677,6 @@ extension Auth: AuthInterop {
   /// * `AuthErrorCodeSessionExpired` - Indicates that the SMS code has expired.
   /// - Parameter credential: The credential supplied by the IdP.
   /// - Returns: The `AuthDataResult` after the successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @discardableResult
   open func signIn(with credential: AuthCredential) async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
@@ -749,7 +742,6 @@ extension Auth: AuthInterop {
   /// * `AuthErrorCodeOperationNotAllowed` - Indicates that anonymous accounts are
   /// not enabled. Enable them in the Auth section of the Firebase console.
   /// - Returns: The `AuthDataResult` after the successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @discardableResult
   @objc open func signInAnonymously() async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
@@ -812,7 +804,6 @@ extension Auth: AuthInterop {
   /// belong to different projects.
   /// - Parameter token: A self-signed custom auth token.
   /// - Returns: The `AuthDataResult` after the successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @discardableResult
   open func signIn(withCustomToken token: String) async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
@@ -941,7 +932,6 @@ extension Auth: AuthInterop {
   /// - Parameter email: The user's email address.
   /// - Parameter password: The user's desired password.
   /// - Returns: The `AuthDataResult` after the successful signin.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @discardableResult
   open func createUser(withEmail email: String, password: String) async throws -> AuthDataResult {
     return try await withCheckedThrowingContinuation { continuation in
@@ -991,7 +981,6 @@ extension Auth: AuthInterop {
   /// * `AuthErrorCodeInvalidActionCode` - Indicates the OOB code is invalid.
   /// - Parameter code: The reset code.
   ///  - Parameter newPassword: The new password.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func confirmPasswordReset(withCode code: String, newPassword: String) async throws {
     return try await withCheckedThrowingContinuation { continuation in
       self.confirmPasswordReset(withCode: code, newPassword: newPassword) { error in
@@ -1037,7 +1026,6 @@ extension Auth: AuthInterop {
   /// Checks the validity of an out of band code.
   /// - Parameter code: The out of band code to check validity.
   /// - Returns:  An `ActionCodeInfo`.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func checkActionCode(_ code: String) async throws -> ActionCodeInfo {
     return try await withCheckedThrowingContinuation { continuation in
       self.checkActionCode(code) { info, error in
@@ -1068,7 +1056,6 @@ extension Auth: AuthInterop {
   /// Checks the validity of a verify password reset code.
   /// - Parameter code: The password reset code to be verified.
   /// - Returns: An email.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func verifyPasswordResetCode(_ code: String) async throws -> String {
     return try await withCheckedThrowingContinuation { continuation in
       self.verifyPasswordResetCode(code) { code, error in
@@ -1101,7 +1088,6 @@ extension Auth: AuthInterop {
   /// This method will not work for out of band codes which require an additional parameter,
   /// such as password reset code.
   /// - Parameter code: The out of band code to be applied.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func applyActionCode(_ code: String) async throws {
     return try await withCheckedThrowingContinuation { continuation in
       self.applyActionCode(code) { error in
@@ -1216,7 +1202,6 @@ extension Auth: AuthInterop {
   /// - Parameter email: The email address of the user.
   /// - Parameter actionCodeSettings: An `ActionCodeSettings` object containing settings related to
   /// handling action codes.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func sendPasswordReset(withEmail email: String,
                               actionCodeSettings: ActionCodeSettings? = nil) async throws {
     return try await withCheckedThrowingContinuation { continuation in
@@ -1271,7 +1256,6 @@ extension Auth: AuthInterop {
   /// - Parameter email: The email address of the user.
   /// - Parameter actionCodeSettings: An `ActionCodeSettings` object containing settings related to
   /// handling action codes.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func sendSignInLink(toEmail email: String,
                            actionCodeSettings: ActionCodeSettings) async throws {
     return try await withCheckedThrowingContinuation { continuation in
@@ -1480,7 +1464,6 @@ extension Auth: AuthInterop {
 
   /// Revoke the users token with authorization code.
   /// - Parameter authorizationCode: The authorization code used to perform the revocation.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   open func revokeToken(withAuthorizationCode authorizationCode: String) async throws {
     return try await withCheckedThrowingContinuation { continuation in
       self.revokeToken(withAuthorizationCode: authorizationCode) { error in

FirebaseAuth/Sources/Swift/Auth/AuthComponent.swift

@@ -19,7 +19,6 @@ import FirebaseAuthInterop
 import FirebaseCore
 import FirebaseCoreExtension
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRAuthComponent)
 class AuthComponent: NSObject, Library, ComponentLifecycleMaintainer {
   // MARK: - Private Variables

FirebaseAuth/Sources/Swift/Auth/AuthDataResult.swift

@@ -14,14 +14,12 @@
 
 import Foundation
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 extension AuthDataResult: NSSecureCoding {}
 
 /// Helper object that contains the result of a successful sign-in, link and reauthenticate
 /// action.
 ///
 /// It contains references to a `User` instance and an `AdditionalUserInfo` instance.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRAuthDataResult) open class AuthDataResult: NSObject {
   /// The signed in user.
   @objc public let user: User

FirebaseAuth/Sources/Swift/Auth/AuthTokenResult.swift

@@ -14,12 +14,10 @@
 
 import Foundation
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 extension AuthTokenResult: NSSecureCoding {}
 
 /// A data class containing the ID token JWT string and other properties associated with the
 /// token including the decoded payload claims.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRAuthTokenResult) open class AuthTokenResult: NSObject {
   /// Stores the JWT string of the ID token.
   @objc open var token: String

FirebaseAuth/Sources/Swift/AuthProvider/AuthCredential.swift

@@ -15,7 +15,6 @@
 import Foundation
 
 /// Public representation of a credential.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRAuthCredential) open class AuthCredential: NSObject, @unchecked Sendable {
   /// The name of the identity provider for the credential.
   @objc public let provider: String

FirebaseAuth/Sources/Swift/AuthProvider/EmailAuthProvider.swift

@@ -15,7 +15,6 @@
 import Foundation
 
 /// A concrete implementation of `AuthProvider` for Email & Password Sign In.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIREmailAuthProvider) open class EmailAuthProvider: NSObject {
   /// A string constant identifying the email & password identity provider.
   @objc public static let id = "password"
@@ -37,7 +36,6 @@ import Foundation
   }
 }
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIREmailPasswordAuthCredential) class EmailAuthCredential: AuthCredential, NSSecureCoding,
   @unchecked Sendable {
   let email: String

FirebaseAuth/Sources/Swift/AuthProvider/FacebookAuthProvider.swift

@@ -15,7 +15,6 @@
 import Foundation
 
 /// Utility class for constructing Facebook Sign In credentials.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRFacebookAuthProvider) open class FacebookAuthProvider: NSObject {
   /// A string constant identifying the Facebook identity provider.
   @objc public static let id = "facebook.com"
@@ -33,7 +32,6 @@ import Foundation
   }
 }
 
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRFacebookAuthCredential) class FacebookAuthCredential: AuthCredential, NSSecureCoding,
   @unchecked Sendable {
   let accessToken: String?

FirebaseAuth/Sources/Swift/AuthProvider/FederatedAuthProvider.swift

@@ -15,7 +15,6 @@
 import Foundation
 
 /// Utility type for constructing federated auth provider credentials.
-@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
 @objc(FIRFederatedAuthProvider) public protocol FederatedAuthProvider: NSObjectProtocol {
   #if os(iOS)
 

FirebaseAuth/Sources/Swift/AuthProvider/GameCenterAuthProvider.swift

@@ -19,17 +19,14 @@
   // TODO: Delete this when minimum iOS version passes 13.5.
   /// WarningWorkaround is needed because playerID is deprecated in iOS 13.0 but still needed until
   /// 13.5 when the fetchItems API was introduced.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   private protocol WarningWorkaround {
     static func pre135Credential(localPlayer: GKLocalPlayer,
                                  completion: @escaping (AuthCredential?, Error?) -> Void)
   }
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   extension GameCenterAuthProvider: WarningWorkaround {}
 
   /// A concrete implementation of `AuthProvider` for Game Center Sign In. Not available on watchOS.
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @objc(FIRGameCenterAuthProvider) open class GameCenterAuthProvider: NSObject {
     /// A string constant identifying the Game Center identity provider.
     @objc public static let id = "gc.apple.com"
@@ -127,7 +124,6 @@
     }
   }
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
   @objc(FIRGameCenterAuthCredential)
   class GameCenterAuthCredential: AuthCredential, NSSecureCoding, @unchecked Sendable {
     let playerID: String?