drm: remove unused connector_count field from drm_display_mode

Doesn't really belong here anyway.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

include/drm/drm_crtc.h

@@ -120,7 +120,6 @@ struct drm_display_mode {
 
 	char name[DRM_DISPLAY_MODE_LEN];
 
-	int connector_count;
 	enum drm_mode_status status;
 	int type;