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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def port_remove(br, port, if_exists=True):
    '''
     Deletes port.

    Args:
        br: A string - bridge name (If bridge is None, port is removed from  whatever bridge contains it)
        port: A string - port name.
        if_exists: Bool, if False - attempting to delete a por that  does  not exist returns False. (Default True)

    Returns:
        True on success, else False.

    .. versionadded:: 2016.3.0

    CLI Example:
    .. code-block:: bash

        salt '*' openvswitch.port_remove br0 8080
    '''
    param_if_exists = _param_if_exists(if_exists)

    if port and not br:
        cmd = 'ovs-vsctl {1}del-port {0}'.format(port, param_if_exists)
    else:
        cmd = 'ovs-vsctl {2}del-port {0} {1}'.format(br, port, param_if_exists)
    result = __salt__['cmd.run_all'](cmd)
    retcode = result['retcode']
    return _retcode_to_bool(retcode)