net: toshiba: remove a redundant local variable 'index_specified'

The local variable 'index_specified' is never used after being assigned.
hence it should be redundant adn can be removed.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/toshiba/ps3_gelic_wireless.c

@@ -1094,7 +1094,7 @@ static int gelic_wl_get_encode(struct net_device *netdev,
 	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
 	struct iw_point *enc = &data->encoding;
 	unsigned long irqflag;
-	unsigned int key_index, index_specified;
+	unsigned int key_index;
 	int ret = 0;
 
 	pr_debug("%s: <-\n", __func__);
@@ -1105,13 +1105,10 @@ static int gelic_wl_get_encode(struct net_device *netdev,
 		return -EINVAL;
 
 	spin_lock_irqsave(&wl->lock, irqflag);
-	if (key_index) {
-		index_specified = 1;
+	if (key_index)
 		key_index--;
-	} else {
-		index_specified = 0;
+	else
 		key_index = wl->current_key;
-	}
 
 	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
 		switch (wl->auth_method) {