[automerger skipped] LeAudioService: Clear lead device when removed from the...

[automerger skipped] LeAudioService: Clear lead device when removed from the group am: 02b70e85 -s ours

am skip reason: Merged-In I6fbb8ac3fdf4ad0d1779acd3c72878a645e600ea with SHA-1 77f58a7e is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/19708501



Change-Id: I8eb177234f448378e2dedd4b1a331ea576805d33
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>