Revert "[1/2] Lockscreen settings: add option to hide power menu when screen is locked"

This reverts commit faa14d4e422eae287077ad56afe7e5d4b74c6c85.

Conflicts:
	res/values/pa_strings.xml
	res/xml/additional_settings.xml
	src/com/android/settings/AOSPAL/AdditionalSettings.java