drivers/net/ipg.c: remove unused variable

The variable gig is initialized but never used otherwise.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
identifier i;
constant C;
@@

(
extern T i;
|
- T i;
  <+... when != i
- i = C;
  ...+>
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/ipg.c

@@ -472,7 +472,6 @@ static int ipg_config_autoneg(struct net_device *dev)
 	unsigned int txflowcontrol;
 	unsigned int rxflowcontrol;
 	unsigned int fullduplex;
-	unsigned int gig;
 	u32 mac_ctrl_val;
 	u32 asicctrl;
 	u8 phyctrl;
@@ -489,7 +488,6 @@ static int ipg_config_autoneg(struct net_device *dev)
 	fullduplex = 0;
 	txflowcontrol = 0;
 	rxflowcontrol = 0;
-	gig = 0;
 
 	/* To accomodate a problem in 10Mbps operation,
 	 * set a global flag if PHY running in 10Mbps mode.
@@ -511,7 +509,6 @@ static int ipg_config_autoneg(struct net_device *dev)
 		break;
 	case IPG_PC_LINK_SPEED_1000MBPS:
 		printk("1000Mbps.\n");
-		gig = 1;
 		break;
 	default:
 		printk("undefined!\n");