Revert "settings: Add text plain battery style"

This reverts commit 474b4cf6ec5230be474bc22a0781153465ae0901.
settings: Add text plain battery style

Patchset 2: Fixed dependents
Patchset 3: Rebased

Requires: http://review.cyanogenmod.org/#/c/56038/

Change-Id: Ieb45b23bcfc850dbee6577885fb2f8312d19bdd6
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>