Revert need kernel headers for graphics

Revert need kernel headers for graphics
Added option to delete /system/recovery-from-boot.p.

Change-Id: I868de90d688a628f10424de68238965d91136e23
Hack for A0001 OTA.

Change-Id: I8cf155f56eae2c1a7bc2c44b59b324af384789a2
Supersu 2.11

Change-Id: Ice718d6edcc29d70be720556fa814453cbf9c999
Root tips.

Change-Id: Ic1b4229e81e84211e679b8232bcd14b8a8946653