Revert "Make the lock screen camera widget configurable (1/2)"

Change-Id: Icbac5455d447ac19be288355ddc4837ad75c874e
Revert "NavigationBar : Customization"

This reverts commit ad97960bd783da565bb022724165d2d695656786.

Change-Id: If459190064ba8b17aec3ce19eb363ec07bd1e1e6