ROMControl: Remove Needless Preference

Was planning on doing this with the
        multiple custom toggles patch
        but I've run out of energy
        on that idea for the time
        being.  Probably a good time
        to do so now.

Change-Id: I6dac8c2a40efba6c60c337307f7fc724757041f3
Fix PIE options not stick with reboots

Change-Id: Ic60ef5bb7a1c433f937edf6fe7406c1175e92ad7