Merge "Remove notification permission feature flag" into tm-dev am: af798227

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18164160



Change-Id: I85450eeb0a5120e2d07c4554b76e3d49eeb101b1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>