Merge "Revert "Post a silent notification if screenshot is dismissed"" into rvc-dev am: 3a9ce8d11a am: 8fce67ebd3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11851515

Change-Id: I6e69c751c0279faded0ef82df93787342754a2db