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

Merge "Call streaming implementation cleanups." into udc-dev am: c7cae571 am: 7039ff8a am: d57c26e6

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



Change-Id: I11e18171280dcf6057308e0b35e3641e103073bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>