staging: ks7010: Remove unecessary cast.

The driver casts '&ks_wlan_handler_def' to 'struct iw_handler_def *',
but it is already of that type.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_wlan_net.c

@@ -2897,7 +2897,7 @@ int ks_wlan_net_start(struct net_device *dev)
 
 	/* The ks_wlan-specific entries in the device structure. */
 	dev->netdev_ops = &ks_wlan_netdev_ops;
-	dev->wireless_handlers = (struct iw_handler_def *)&ks_wlan_handler_def;
+	dev->wireless_handlers = &ks_wlan_handler_def;
 	dev->watchdog_timeo = TX_TIMEOUT;
 
 	netif_carrier_off(dev);