staging: most: net: remove redundant cleanup code

This removes redundant cleanup code that is executed anyway when the
most_deregister_aim() is called.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/aim-network/networking.c

@@ -509,25 +509,8 @@ static int __init most_net_init(void)
 
 static void __exit most_net_exit(void)
 {
-	struct net_dev_context *nd, *tmp;
-	unsigned long flags;
-
-	spin_lock_irqsave(&list_lock, flags);
-	list_for_each_entry_safe(nd, tmp, &net_devices, list) {
-		list_del(&nd->list);
-		spin_unlock_irqrestore(&list_lock, flags);
-		/*
-		 * do not call most_stop_channel() here, because channels are
-		 * going to be closed in ndo_stop() after unregister_netdev()
-		 */
-		most_net_rm_netdev_safe(nd);
-		kfree(nd);
-		spin_lock_irqsave(&list_lock, flags);
-	}
-	spin_unlock_irqrestore(&list_lock, flags);
-
-	most_deregister_aim(&aim);
 	pr_info("most_net_exit()\n");
+	most_deregister_aim(&aim);
 }
 
 /**