Unbind CallScreeningService when timeout reached. am: d57f25311a am: aaba434a42

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

Change-Id: Ic51a0e868a512ca27ede35bb8e42ce15a39fdcc7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>