Hide SuperUser if SupenSU is installed

Change-Id: I9765d7b1e3a877651e70a9a32f002a288d79c1ce
Hide Superuser entry if root access for apps is disabled.

Change-Id: Ibb77ba5a0fccf22564a26b8b1e13f7762c65718e
Cleanup Superuser and/or SuperSU hide

Change-Id: If7991867495e24f46a086db8ef0c11233f9c6eef