'Removes sections with single child elements in favor of just embedding
the child element'

@classmethod
@process_includes
def from_xml(cls, xml_data, system, id_generator):

    xml_object = etree.fromstring(xml_data)
    system.error_tracker('WARNING:    the    <{0}>    tag    is    deprecated.        Please    do    not    use    in    new    content.'.format(xml_object.tag))
    if (len(xml_object) == 1):
        for (key, val) in xml_object.items():
            xml_object[0].set(key, val)
        return system.process_xml(etree.tostring(xml_object[0]))
    else:
        xml_object.tag = 'sequential'
        return system.process_xml(etree.tostring(xml_object))
