Revert "Settings: Configurable 0, 90, 180 and 270 degree rotation (2/2)"

This reverts commit 59d2b8748ea0c942635d2e598b60b31b2268cd55.

Conflicts:
	proguard.flags
	res/values/cr_strings.xml
	res/xml/display_rotation.xml
	src/com/android/settings/DisplaySettings.java
	src/com/android/settings/slim/DisplayRotation.java

(cherry picked from commit 3c6beaac3a52def5fa07993afabae431a627aa42)