drm/i915: Kill a few pointless comments

The code is totally obvious so these comments serve no purpose. What's
worse, one of them was wrong. Just remove them.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed