Merge "Hide the a11y service enable dialog from non-a11y-tools." into udc-dev am: aa46e3d3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23267499



Change-Id: If405f63827deee2908b1366bf3099274d76debfa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>