tc35815: Remove unnecessary skb->dev assignment

Apply changes in commit 4c13eb6657fe9ef7b4dc8f1a405c902e9e5234e0 to
newly added piece of code.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/tc35815.c

@@ -540,7 +540,6 @@ static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
 	skb = dev_alloc_skb(RX_BUF_SIZE);
 	if (!skb)
 		return NULL;
-	skb->dev = dev;
 	*dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE,
 				     PCI_DMA_FROMDEVICE);
 	if (pci_dma_mapping_error(*dma_handle)) {