[automerger skipped] Revert "Unregister callback on unregisterAppUid." am: 71eeb811 -s ours

am skip reason: Merged-In Ib0065cc4d85bbd914b07f17080227ada969cbb44 with SHA-1 c068aafa is already in history. Merged-In was found from reverted change.

Reverted change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/21026537

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/21038940



Change-Id: I2e88679178e855ae01908d286d3bc53acc31f1c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>