mv643xx_eth: Do not modify struct netdev tx_queue_len

This driver erroneously zeros dev->tx_queue_len, since
mp->tx_ring_size has not yet been initialized.  Actually,
the driver shouldn't modify tx_queue_len at all and should
leave the value set by alloc_etherdev(), currently 1000.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/mv643xx_eth.c

@@ -1357,7 +1357,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 #endif
 
 	dev->watchdog_timeo = 2 * HZ;
-	dev->tx_queue_len = mp->tx_ring_size;
 	dev->base_addr = 0;
 	dev->change_mtu = mv643xx_eth_change_mtu;
 	dev->do_ioctl = mv643xx_eth_do_ioctl;