Merge "Revert "Send update config change when letterbox is moved"" into udc-qpr-dev am: f44c4ffb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24379249



Change-Id: I8400ec6466f8354ca22ad1790629725bc23ccab4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>