Revert "DeskClock: Fix alarm clock screen show black  when screen locked;" am: 1696c539cb am: 053044633e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/DeskClock/+/12150121

Change-Id: Idb68ac98ab0285b2cf124bc483f6c83a5d10cc95