Merge "[Output Switcher] Delete Media Output Group related code" into tm-qpr-dev am: 184d8894

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18670486



Change-Id: Iab376b89e51911248859011298a1e19a5b9b1776
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>