[auth-swift] Remove erroneously added public api #3511

Job	Run time
pod-lib-lint (FirebaseAuthInterop.podspec, ios, macos-12)	2m 19s
pod-lib-lint (FirebaseAuthInterop.podspec, ios, macos-13)	3m 17s
pod-lib-lint (FirebaseAuthInterop.podspec, tvos, macos-12)	2m 42s
pod-lib-lint (FirebaseAuthInterop.podspec, tvos, macos-13)	3m 15s
pod-lib-lint (FirebaseAuthInterop.podspec, macos --skip-tests, macos-12)	2m 6s
pod-lib-lint (FirebaseAuthInterop.podspec, macos --skip-tests, macos-13)	4m 20s
pod-lib-lint (FirebaseAuthInterop.podspec, watchos, macos-12)	2m 54s
pod-lib-lint (FirebaseAuthInterop.podspec, watchos, macos-13)	3m 20s
pod-lib-lint (FirebaseAuth.podspec, ios, macos-12)	8m 0s
pod-lib-lint (FirebaseAuth.podspec, ios, macos-13)	50m 21s
pod-lib-lint (FirebaseAuth.podspec, tvos, macos-12)	6m 14s
pod-lib-lint (FirebaseAuth.podspec, tvos, macos-13)	6m 24s
pod-lib-lint (FirebaseAuth.podspec, macos --skip-tests, macos-12)	7m 40s
pod-lib-lint (FirebaseAuth.podspec, macos --skip-tests, macos-13)	6m 36s
pod-lib-lint (FirebaseAuth.podspec, watchos, macos-12)	3m 59s
pod-lib-lint (FirebaseAuth.podspec, watchos, macos-13)	6m 21s
integration-tests	15m 30s
quickstart	7m 24s
spm (iOS, macos-12)	5m 27s
spm (iOS, macos-13)	8m 57s
spm (tvOS, macos-12)	4m 12s
spm (tvOS, macos-13)	4m 11s
spm (macOS, macos-12)	4m 50s
spm (macOS, macos-13)	3m 53s
spm (catalyst, macos-12)	3m 58s
catalyst	6m 51s
spm (catalyst, macos-13)	5m 4s
spm (watchOS, macos-12)	4m 43s
spm (watchOS, macos-13)	5m 28s
auth-cron-only	0s
	3h 20m 16s

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