Revert "Allow focused privileged windows to capture the power bu..."

Revert submission 30412668

Reason for revert: DroidMonitor: Potential culprit for http://b/382133936 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.
Reverted changes: /q/submissionid:30412668

Change-Id: I28d190422c2d44324b55da6fdd6a0f0af8f2948f