Revert "wakelock blocking (2/2) - WIP"

This reverts commit 986122798848a9d1528cc1f658d375416441263f.

Conflicts:
	res/values/strings.xml
wakelock blocker: (2/2)

Change-Id: I36211f2a696043289f700459241301200e0d8498

Conflicts:
	res/values/strings.xml
	res/xml/preference_headers.xml
wakelock blocker: layout fixed

Change-Id: I82090fd9ddf4e01f4912bacac757f7910d004b65
wakelock blocker: show blocked with red color

Change-Id: Ie9fadd7c7a8ac98870825ff57793d28039f4eb6e