rtl8150: use default MTU of 1500

The RTL8150 driver uses an MTU of 1540 by default, which causes a
bunch of problems -- it prevents booting from NFS root, for one.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/rtl8150.c

@@ -926,7 +926,6 @@ static int rtl8150_probe(struct usb_interface *intf,
 	netdev->set_multicast_list = rtl8150_set_multicast;
 	netdev->set_mac_address = rtl8150_set_mac_address;
 	netdev->get_stats = rtl8150_netdev_stats;
-	netdev->mtu = RTL8150_MTU;
 	SET_ETHTOOL_OPS(netdev, &ops);
 	dev->intr_interval = 100;	/* 100ms */