libvisual/lv_video.c Address warning -Wunused-label

Symptom was:
> ../../libvisual-0.4.2/libvisual/lv_video.c: In function 'visual_video_fill_color_rectangle':
> ../../libvisual-0.4.2/libvisual/lv_video.c:1766:1: error: label 'out' defined but not used [-Werror=unused-label]
>  1766 | out:
>       | ^~~

Author: hartwork

libvisual/libvisual/lv_video.c

@@ -1763,7 +1763,6 @@ int visual_video_fill_color_rectangle (VisVideo *video, VisColor *color, VisRect
 
 	errret = visual_video_fill_color (&svid, color);
 
-out:
 	visual_object_unref (VISUAL_OBJECT (&svid));
 
 	return errret;