Revert "[3/3]Quiet Hours"

This reverts commit 032ea5d7171b6d5c8469c47e8d4af89ae273fe38.

Change-Id: I834d1aa509df1e45293aa0f6a748c3b018f475f4
Merge "Revert "[3/3]Quiet Hours"" into kitkat
Merge remote-tracking branch 'PA/kitkat' into kitkat-remix