BatterySaverSettings: fix fc on tablets
BatterySaver: remove options that don't work properly

Conflicts:
	res/values-de/mahdi_strings.xml
	res/values-es/mahdi_strings.xml
	res/values-it/mahdi_strings.xml
	res/values-ru/mahdi_strings.xml
	res/values-vi/mahdi_strings.xml
	res/values/mahdi_strings.xml

Change-Id: Iba118be9c89ef547f6c1a5dda1e5cd1feeb7ff0d