iodispatcher: remove explicit dispatch loop for control client

Drop the explicit loop calling bao_dispatch_io() when creating a
control client.

There is no need to proactively check and drain pending requests at
this point. Bao guarantees that the backend VM is notified via an
interrupt whenever there are requests to process, even if the
frontend initiates the interaction first. As a result, the backend
will naturally enter the dispatch path when work is available.

Removing this loop simplifies the initialization path and avoids
redundant polling without changing behavior.

Signed-off-by: João Peixoto <joaopeixotooficial@gmail.com>

Author: joaopeixoto13

iodispatcher/io_client.c

@@ -303,11 +303,6 @@ struct bao_io_client* bao_io_client_create(struct bao_dm* dm, bao_io_client_hand
     list_add(&client->list, &dm->io_clients);
     up_write(&dm->io_clients_lock);
 
-	if (is_control) {
-		while (bao_dispatch_io(dm) > 0)
-			;
-	}
-
 	return client;
 }