Staging: wlan-ng: fix compiler warnings

This fixes some compiler warnings in teh wlan-ng driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/wlan-ng/p80211netdev.c

@@ -921,7 +921,6 @@ int wlan_unsetup(wlandevice_t *wlandev)
 int register_wlandev(wlandevice_t *wlandev)
 {
 	int		i = 0;
-	netdevice_t	*dev = wlandev->netdev;
 
 	DBFENTER;
 

drivers/staging/wlan-ng/p80211wext.c

@@ -591,7 +591,6 @@ static int p80211wext_siwencode(netdevice_t *dev,
 
 	int err = 0;
 	int result = 0;
-	int enable = 0;
 	int i;
 
 	DBFENTER;