Revert "Settings: Lockscreen background - 2/2"

This reverts commit c8652b96a8c3e497c81dc000a873ea12fab15679.

Conflicts:

	res/values/cr_arrays.xml
	res/values/cr_strings.xml
	src/com/android/settings/cyanogenmod/LockscreenInterface.java
Settings: Lockscreen custom wallpaper (2/2)

Change-Id: I1ac1351e9a31a5827847e30113e933f2b7da219f

Conflicts:

	src/com/android/settings/cyanogenmod/LockscreenInterface.java