TRANS_DP_VIDEO_AUDIO is not used at all.
The other 3 has duplicated #defines.
Signed-off-by: NDexuan Cui <dexuan.cui@intel.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>