drm/edid: Remove a misleading comment

mode_in_range() handles what this was warning about.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_edid.c

@@ -1016,10 +1016,6 @@ mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
 	return true;
 }
 
-/*
- * XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will
- * need to account for them.
- */
 static int
 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
 			struct detailed_timing *timing)