can: dev: remove unnecessary blank line

This patch removes unnecessary blank lines, so that checkpatch doesn't
complain anymore.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/dev.c

@@ -449,7 +449,6 @@ void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
 	}
 
 	if (!priv->echo_skb[idx]) {
-
 		skb = can_create_echo_skb(skb);
 		if (!skb)
 			return;