usbnet: mcs7830: don't reset link

The driver doesn't implement link_reset() callback, so it needn't
to send link reset event.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 3f3f566..e1c00e9 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -576,10 +576,9 @@
 		 */
 		if (data->link_counter > 20) {
 			data->link_counter = 0;
-			if (link) {
+			if (link)
 				netif_carrier_on(dev->net);
-				usbnet_defer_kevent(dev, EVENT_LINK_RESET);
-			} else
+			else
 				netif_carrier_off(dev->net);
 			netdev_dbg(dev->net, "Link Status is: %d\n", link);
 		}