Merge "Call streaming implementation cleanups." into udc-dev am: c7cae571...

Merge "Call streaming implementation cleanups." into udc-dev am: c7cae571 am: d450ad13 am: e99d8e51 am: 5c38016b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/22912703



Change-Id: Id91d3c8f5180ebc91050437ac361df3decaddc8c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>