Fix shared billing country identifier

Committed-By-Agent: codex
Co-authored-by: codex <noreply@openai.com>

Author: cttsai-stripe

payments-ui-core/src/main/java/com/stripe/android/ui/core/elements/BillingAddressElement.kt

@@ -79,7 +79,6 @@ class BillingAddressElement(
         CountryConfig(countryCodes),
         rawValuesMap[IdentifierSpec.Country]
     ),
-    countryElementIdentifier: IdentifierSpec,
     autocompleteAddressInteractorFactory: AutocompleteAddressInteractor.Factory?,
     sameAsShippingElement: SameAsShippingElement?,
     shippingValuesMap: Map<IdentifierSpec, String?>?,
@@ -133,7 +132,7 @@ class BillingAddressElement(
                 emailConfig = emailConfig,
             ),
             countryElement = CountryElement(
-                identifier = countryElementIdentifier,
+                identifier = IdentifierSpec.Country,
                 controller = countryDropdownFieldController,
             ),
             shippingValuesMap = shippingValuesMap,

payments-ui-core/src/test/java/com/stripe/android/ui/core/elements/CardBillingAddressElementTest.kt

@@ -312,7 +312,6 @@ internal class CardBillingAddressElementTest {
             rawValuesMap = emptyMap(),
             countryCodes = emptySet(),
             countryDropdownFieldController = dropdownFieldController,
-            countryElementIdentifier = IdentifierSpec.Country,
             autocompleteAddressInteractorFactory = null,
             sameAsShippingElement = null,
             shippingValuesMap = null,
@@ -383,7 +382,6 @@ internal class CardBillingAddressElementTest {
                 rawValuesMap = emptyMap(),
                 countryCodes = emptySet(),
                 countryDropdownFieldController = dropdownFieldController,
-                countryElementIdentifier = IdentifierSpec.Country,
                 autocompleteAddressInteractorFactory = {
                     object : AutocompleteAddressInteractor {
                         override val autocompleteConfig: AutocompleteAddressInteractor.Config =

paymentsheet/src/main/java/com/stripe/android/lpmfoundations/paymentmethod/definitions/CardDefinition.kt

@@ -290,7 +290,6 @@ private fun cardBillingElements(
         IdentifierSpec.Generic("credit_billing"),
         countryCodes = allowedCountries,
         rawValuesMap = initialValues,
-        countryElementIdentifier = IdentifierSpec.Country,
         sameAsShippingElement = sameAsShippingElement,
         shippingValuesMap = shippingValues,
         addressCollectionMode = cardBillingAddressCollectionMode(

paymentsheet/src/main/java/com/stripe/android/paymentsheet/ui/BillingDetailsForm.kt

@@ -44,7 +44,6 @@ internal class BillingDetailsForm(
         sameAsShippingElement = null,
         shippingValuesMap = null,
         countryCodes = allowedBillingCountries,
-        countryElementIdentifier = IdentifierSpec.Country,
         collectionConfiguration = BillingDetailsCollectionConfiguration(
             address = when (addressCollectionMode) {
                 AddressCollectionMode.Automatic ->