Bug 980449

Description of problem:

In remoteConnectDomainEventDeregisterAny function, the codes are

>>   /*The count here calculated is for a connection, not for an event*/

    if ((count = virDomainEventStateDeregisterID(conn,
                                                 priv->domainEventState,
                                                 callbackID)) < 0) {
        virReportError(VIR_ERR_RPC, _("unable to find callback ID %d"), callbackID);
        goto done;
    }


>>  /* 
        Here we want a count for an eventID , so there's a situation: we release the resource on the server only once for the whole connection, in which there may be a lot of events registered. At last, we fail to release most resource about events on the server.
    */

    /* If that was the last callback for this eventID, we need to disable
     * events on the server */
    if (count == 0) {
        args.eventID = callbackID;

        if (call(conn, priv, 0, REMOTE_PROC_CONNECT_DOMAIN_EVENT_DEREGISTER_ANY,
                 (xdrproc_t) xdr_remote_connect_domain_event_deregister_any_args, (char *) &args,
                 (xdrproc_t) xdr_void, (char *) NULL) == -1)
            goto done;
    }

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