Removes references to Flutter v1 android embedding classes #653

Job	Run time
Build sign_in_with_apple/sign_in_with_apple Web on ubuntu-22.04 and Flutter 3.19.1	1m 20s
Build sign_in_with_apple/sign_in_with_apple iOS on macos-13 with Xcode 15.2 and Flutter 3.19.1	4m 2s
Build sign_in_with_apple/sign_in_with_apple macOS on macos-13 with Xcode 15.2 and Flutter 3.19.1	3m 34s
Build sign_in_with_apple/sign_in_with_apple iOS on macos-14 with Xcode 14.3.1 and Flutter 3.19.1	4m 35s
Build sign_in_with_apple/sign_in_with_apple Android on ubuntu-22.04 and Flutter 3.19.1	2m 57s
Build sign_in_with_apple/sign_in_with_apple macOS on macos-14 with Xcode 14.3.1 and Flutter 3.19.1	20m 39s
Build sign_in_with_apple/sign_in_with_apple iOS on macos-14 with Xcode 15.2 and Flutter 3.19.1	5m 49s
Build sign_in_with_apple/sign_in_with_apple macOS on macos-14 with Xcode 15.2 and Flutter 3.19.1	8m 34s
Test pending_operations on ubuntu-22.04	1m 15s
Test sign_in_with_apple/sign_in_with_apple on ubuntu-22.04	1m 23s
Test sign_in_with_apple/sign_in_with_apple_platform_interface on ubuntu-22.04	1m 22s
Test state_queue_test on ubuntu-22.04	1m 19s
Test state_queue on ubuntu-22.04	1m 17s
Test with_bloc on ubuntu-22.04	1m 25s
Test pending_operations on macos-14	2m 19s
Test sign_in_with_apple/sign_in_with_apple on macos-14	2m 13s
Test sign_in_with_apple/sign_in_with_apple_platform_interface on macos-14	2m 1s
Test state_queue_test on macos-14	2m 16s
Test state_queue on macos-14	2m 14s
Test with_bloc on macos-14	2m 45s
	1h 13m 19s

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