[owners] Remove xincheny@google.com from libraries/BluetoothServices/OWNERS am: da652bc8fe

Original change: https://android-review.googlesource.com/c/device/google/atv/+/3478550

Change-Id: Id82fd145057be0b0f65b11cf9b4ec93c3bcc0f0d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>