Merge "Remove framework-atb-backward-compatibility" am: 9f82ba21f1 am: 4f48fa4d6f am: 87827b5eb3

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1663339

Change-Id: I61bcf109ebcc8a746fde814fbd9dc5fe69e9dfca