Merge "Revert "Ringer mode button state a11y"" into udc-dev am: c6a789e7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23589201



Change-Id: I1f1368f1c4892e84109be93f11ef8cd4e0f4d7b7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>