BatterySaver: remove options that don't work properly

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values-de/mahdi_strings.xml
	packages/SystemUI/res/values-es/mahdi_strings.xml
	packages/SystemUI/res/values-ru/mahdi_strings.xml
	packages/SystemUI/res/values-vi/mahdi_strings.xml
	packages/SystemUI/res/values/mahdi_strings.xml
	packages/SystemUI/src/com/android/systemui/batterysaver/BatterySaverService.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BluetoothController.java

Change-Id: I4c04cc02de9633e9121c7f81fef4f56cae76c299