Merge "Revert "Post a silent notification if screenshot is dismissed"" into rvc-dev am: 3a9ce8d1 am: 8fce67eb am: 116b1bbf am: 78f20603

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

Change-Id: Ie6384f894f885e634f6916ef794ad70eff2747e3