Merge "Remove notification permission feature flag" into tm-dev am: 23a85a1f96 am: 8e41734caf am: c92e89217f am: 6d35c24218

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/18164272

Change-Id: I8a248fade556f72b8e66ad6f233fbb24e91f9fb5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>