media: davinci: remove unnecessary NULL check

We verified that "vpif_obj.sd[i]" is non-NULL on the previous line so
no need to check here.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/ti/davinci/vpif_display.c

@@ -1284,7 +1284,6 @@ static __init int vpif_probe(struct platform_device *pdev)
 			goto probe_subdev_out;
 		}
 
-		if (vpif_obj.sd[i])
 		vpif_obj.sd[i]->grp_id = 1 << i;
 	}
 	err = vpif_probe_complete();