Merge "Revert "Add new APIs to provide a hint to the AccessibilityServi...""...

Merge "Revert "Add new APIs to provide a hint to the AccessibilityServi..."" into udc-dev am: 90b21ce6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22190979



Change-Id: I87a9512f3141c2f18570cd0343dcb7248a28400e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>