LeAudioService: Remove dead code am: 4d16cb50 am: fb1d0fb6 am: 7832ef6c am: 4e90d051 am: cb941132

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2526962



Change-Id: I23865a1695d125c1fe1ff1dc87148af0f7e1d856
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>