lan78xx: Clean up some inconsistent indenting

Eliminate the follow smatch warning:

drivers/net/usb/lan78xx.c:4961 lan78xx_resume() warn: inconsistent
indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/lan78xx.c

@@ -4957,7 +4957,6 @@ static int lan78xx_resume(struct usb_interface *intf)
 			if (ret < 0) {
 				if (ret == -ENODEV)
 					netif_device_detach(dev->net);
-
 				netdev_warn(dev->net, "Failed to submit intr URB");
 			}
 		}