Unbind CallScreeningService when timeout reached. am: d57f25311a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/27790553

Change-Id: If4ce4d7bbfe82237e7ca0251a5c9c6c6da8e3f9b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>