public synchronized void unregisterName(String name) {
        discard(names, name);
        discard(pending, name);
        unreg.add(name);
        updateTask.scheduleNow();
        transportThread.wakeup();
    }
Unregister a service with the slobrok cluster

@param name service name
jrt/src/com/yahoo/jrt/slobrok/api/Register.java