Revert "FileUtils: add method to get UUID of a volume"

This reverts commit 4f8059a691d581bceae819c0994fc3c54408121f.
Remove
Frameworks: Lockscreen Colors and Lock Image [1/2]

PS2: Separate all color elements
	into separate prefs.
	Also colorize bouncer frame
	for secure lockscreens.
PS3: Whitespace

PS?: Add Lock Icon Picker =]
PS?: Add "Colorize Custom Icon" option.

Change-Id: I542dfa01bb1d3d0e401bbf8a5f58b32f08cbfc62