camera_device: remove type

camera_device didn't really offer much in terms of control considering
that most domains that need camera_device, also need video_device and
vice versa.

Thus, drop camera_device from the policy.
Change-Id: If438610ac6998399719ab375210c023320d0b7ed

audioserver.te

@@ -48,7 +48,6 @@ allow audioserver radio_data_file:file { read getattr };
 allow audioserver { appdomain autoplay_app }:fifo_file { getattr read write };
 
 # Access camera device.
-allow audioserver camera_device:chr_file rw_file_perms;
 allow audioserver rpmsg_device:chr_file rw_file_perms;
 
 # Inter System processes communicate over named pipe (FIFO)