Delete unused code post periphery integration (#15986)

Author: RafaelKayumov

WooCommerce/Classes/POS/Presentation/Barcode Scanning/BarcodeScannerContainer.swift

@@ -53,7 +53,9 @@ struct BarcodeScannerContainerRepresentable: UIViewControllerRepresentable {
 /// based on VoiceOver state. Uses GameController framework for optimal performance when possible,
 /// and falls back to UIKit UIPress events when VoiceOver is enabled.
 final class GameControllerBarcodeScannerHostingController: UIHostingController<EmptyView> {
+    /// periphery: ignore - retain `gameControllerObserver` to keep it alive
     private(set) var gameControllerObserver: GameControllerBarcodeObserver?
+
     private(set) var uiKitObserver: UIKitBarcodeObserver?
 
     private let configuration: HIDBarcodeParserConfiguration

WooCommerce/Classes/ViewRelated/Orders/Order Details/Address Edit/EditOrderAddressForm.swift

@@ -96,8 +96,6 @@ struct EditOrderAddressForm<ViewModel: AddressFormViewModelProtocol>: View {
     @Environment(\.safeAreaInsets) var safeAreaInsets: EdgeInsets
     @State private var showingCustomerSearch: Bool = false
 
-    @State private var showingMapPicker = false
-
     var body: some View {
         Group {
             ScrollView {