Revert "Battery around lockring(2/2)"

This reverts commit 46fa54ac07d0212669cbb2a37fc59c9bbfd8c175.

Conflicts:
	res/values/strings.xml
Draw a battery level around unlock ring [2/2]
Credits Guillaume Lesniak - Omni
Guillaume Lesniak <me@xplod.fr>
https://gerrit.omnirom.org/1818

Change-Id: I8445c630ff91e73dae4b887ac7582e51b3fffe0e

Conflicts:
	res/values/strings.xml
	res/xml/lockscreen_general.xml