Merge "Revert "Unregister WindowInfosListener in destructor"" into udc-dev am: bb98b14b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21781659



Change-Id: I5c740fee14fa37db590571244cab7dd30db2ca9c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>