Merge "Merge "Clean up existing a11y listeners when reparenting." into rvc-dev...

Merge "Merge "Clean up existing a11y listeners when reparenting." into rvc-dev am: 4d3059c0 am: 2e7a1c94" into rvc-d1-dev-plus-aosp am: 48d6ac2f am: f64f1f5f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11707943

Change-Id: I48564a4f3a74d34b11b5e4df5aecbec8b199e3b7