Revert "More sepolicy updates"

This reverts commit 872bd8418b8fdaac71c4b6b306045c569298dad5.

Conflicts:
	sepolicy/adbd.te
	sepolicy/camera.te
	sepolicy/file_contexts
	sepolicy/mediaserver.te
Revert "Initial SELinux policy"

This reverts commit 2827875efebf0a196ea956dbca3c432df3a9b47b.

Conflicts:
	BoardConfigCommon.mk
	sepolicy/camera.te
	sepolicy/dhcp.te
	sepolicy/file.te
	sepolicy/file_contexts
	sepolicy/system.te