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: I44d1936b8ff8756943b9b94a688a2e892f9dc994
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>