Merge "Unregister from change notifications when binder dies." into tm-dev am: 93e03912be

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/AppSearch/+/17847799

Change-Id: I2b5e2c931f20d5cead10a4aeb475d78b4659c353
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>