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

Merge "Remove notification permission feature flag" into tm-dev am: af798227 am: 1c7aab67 am: 72b1df56

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



Change-Id: I528a4704e1543f074c8570d911dfe53760466630
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>