e1000: remove redundant assignment

Signed-off-by: David Mueller <d.mueller@elsoft.ch>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/e1000.c

@@ -4532,7 +4532,6 @@ static int e1000_set_phy_type (struct e1000_hw *hw)
 			hw->mac_type == e1000_82547 ||
 			hw->mac_type == e1000_82547_rev_2) {
 			hw->phy_type = e1000_phy_igp;
-			hw->phy_type = e1000_phy_igp;
 			break;
 		}
 	case IGP03E1000_E_PHY_ID: