Remove two unused funcs

    controller.remove_event_listener(func)

def connect_over_circuit(controller, circ_id, sock, host, port):

    with stream_building_lock:

        listener = attach_stream_to_circuit_listener(controller, circ_id)

        add_event_listener(controller, listener, EventType.STREAM)

        connected = socket_connect(sock, host, port)

        remove_event_listener(controller, listener)

    return connected

def init_controller(port=None, path=None, set_custom_stream_settings=True):

    # make sure only one is set

    assert port is not None or path is not None

    return c, ''

def init_controller_with_config(conf):

    assert isinstance(conf, ConfigParser)

    if conf['tor']['control_type'] not in ['port', 'socket']:

        return None, 'control_type in config must be either port or socket'

    if conf['tor']['control_type'] == 'port':

        try:

            port = conf.getint('tor', 'control_location')

        except ValueError:

            return None, 'control_location must be int if control_type = port'

        c, error_msg = init_controller(port=port)

        if not c:

            return None, error_msg

        return c, ''

    c, error_msg = init_controller(path=conf['tor']['control_location'])

    if not c:

        return None, error_msg

    return c, ''

def is_controller_okay(c):

    if not c:

        return False