Merge "Remove redundant checks that stop updating systemUI when entering dream" into rvc-dev am: a3a29967b1 am: 57319f5921 am: 72ddc2a2d5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12066142

Change-Id: I0d50d1a2268c80cdb215d39223655fcbbb7e76a9