[media] DaVinci-VPBE: Delete an unnecessary variable initialisation in vpbe_set_output()

The local variable "ret" will be set to an appropriate value a bit later.
Thus omit the explicit initialisation at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/davinci/vpbe.c

@@ -230,7 +230,7 @@ static int vpbe_set_output(struct vpbe_device *vpbe_dev, int index)
 	u32 if_params;
 	int enc_out_index;
 	int sd_index;
-	int ret = 0;
+	int ret;
 
 	if (index >= cfg->num_outputs)
 		return -EINVAL;