RDMA/nes: Remove unused nes_netdev_exit() function

nes_netdev_exit() has no callers, so delete it.
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/nes/nes.h

@@ -524,7 +524,6 @@ int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
 
 /* nes_nic.c */
 void nes_netdev_set_multicast_list(struct net_device *);
-void nes_netdev_exit(struct nes_vnic *);
 struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
 void nes_netdev_destroy(struct net_device *);
 int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);

drivers/infiniband/hw/nes/nes_nic.c

@@ -947,28 +947,6 @@ static int nes_netdev_change_mtu(struct	net_device *netdev,	int	new_mtu)
 	return ret;
 }
 
-
-/**
- * nes_netdev_exit - destroy network device
- */
-void nes_netdev_exit(struct nes_vnic *nesvnic)
-{
-	struct net_device *netdev = nesvnic->netdev;
-	struct nes_ib_device *nesibdev = nesvnic->nesibdev;
-
-	nes_debug(NES_DBG_SHUTDOWN, "\n");
-
-	// destroy the ibdevice if RDMA enabled
-	if ((nesvnic->rdma_enabled)&&(nesvnic->of_device_registered)) {
-		nes_destroy_ofa_device( nesibdev );
-		nesvnic->of_device_registered = 0;
-		nesvnic->nesibdev = NULL;
-	}
-	unregister_netdev(netdev);
-	nes_debug(NES_DBG_SHUTDOWN, "\n");
-}
-
-
 #define NES_ETHTOOL_STAT_COUNT 55
 static const char nes_ethtool_stringset[NES_ETHTOOL_STAT_COUNT][ETH_GSTRING_LEN] = {
 	"Link Change Interrupts",