media: davinci: remove redundant assignment to pointer common

Pointer common is being assigned a value in a for-loop and the pointer
is never read afterwards. The assignment is redundant and can be removed.

Link: https://lore.kernel.org/linux-media/20211205002242.202769-1-colin.i.king@gmail.comSigned-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/davinci/vpif_capture.c

@@ -1467,7 +1467,6 @@ static int vpif_probe_complete(void)
 	for (k = 0; k < j; k++) {
 		/* Get the pointer to the channel object */
 		ch = vpif_obj.dev[k];
-		common = &ch->common[k];
 		/* Unregister video device */
 		video_unregister_device(&ch->video_dev);
 	}