Transform a dictionary of {name: [(elt, value)+]} into a dictionary of
        {name: [value+]}.

    :param dict properties: properties from where get only values.
    :return: dictionary of parameter values by names.
    :rtype: dict

def remove_ctx(properties):
    """
    Transform a dictionary of {name: [(elt, value)+]} into a dictionary of
        {name: [value+]}.

    :param dict properties: properties from where get only values.
    :return: dictionary of parameter values by names.
    :rtype: dict
    """
    result = {}

    for name in properties:
        elt_properties = properties[name]
        result[name] = []
        for _, value in elt_properties:
            result[name].append(value)

    return result