clear out more files

Change-Id: I25bb2837e927f0d78d46746ffad1c7fc55eddffe
remove depreciated datamedia mount

Change-Id: Ic0586057d108c6e5944d047f2d28aafdef3a578d
disable crypto for now in recovery + add correctly backlight sysfs

Change-Id: I6cd89e931cd77bf40175683b41d6ebffa4a9c2df