DRM: remove unused dev_class
DRM: remove unused dev_class

The struct class_device *dev_class is not used in the struct drm_head
structure at all, so remove it as class_device is being removed entirely
from the kernel.


Cc: David Airlie <f2295d84e358395675bc8031be58672073ae065e@linux.ie>
Cc: Tony Jones <7abf278458e90b3b577a876cbb907c1d2c021a16@suse.de>
Cc: Kay Sievers <a591390dde1303c55d531fd687bfa5ffd43e435e@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>


KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs