Revert "Battery text mode (1/2)"

This reverts commit d00073584c222f204801fe854431017eb89939cc.

Conflicts:
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarHeaderView.java

Change-Id: I16924b73f4307633a069a2bbb922d6abc7b5ed8b