[NET]: Kill eth_copy_and_sum().

It hasn't "summed" anything in over 7 years, and it's
just a straight mempcy ala skb_copy_to_linear_data()
so just get rid of it.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index f2a90a7..870c539 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -1137,7 +1137,7 @@
 				if (skb == NULL)
 					break;
 				skb_reserve(skb, 2);	/* 16 byte align the IP header */
-				eth_copy_and_sum(skb, rx_skb->data, pkt_len, 0);
+				skb_copy_to_linear_data(skb, rx_skb->data, pkt_len);
 				skb_put(skb, pkt_len);
 				pci_dma_sync_single_for_device(yp->pci_dev, desc->addr,
 											   yp->rx_buf_sz,