net: del hub port when peer is deleted

We should del hub port when peer is deleted since it will not be reused
and will only be freed during exit.
Signed-off-by: NJason Wang <jasowang@redhat.com>
Message-id: 1422860798-17495-3-git-send-email-jasowang@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

net/net.c

@@ -996,6 +996,8 @@ void net_host_device_remove(Monitor *mon, const QDict *qdict)
         error_report("invalid host network device '%s'", device);
         return;
     }
+
+    qemu_del_net_client(nc->peer);
     qemu_del_net_client(nc);
 }