pch_gbe: remove unused variable

netdev is unused in pch_gbe_setup_rctl.  Remove this declaration to
avoid a compiler warning.
Signed-off-by: NJon Mason <jdmason@kudzu.us>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -698,7 +698,6 @@ static void pch_gbe_configure_tx(struct pch_gbe_adapter *adapter)
  */
 static void pch_gbe_setup_rctl(struct pch_gbe_adapter *adapter)
 {
-	struct net_device *netdev = adapter->netdev;
 	struct pch_gbe_hw *hw = &adapter->hw;
 	u32 rx_mode, tcpip;