Update operation for ISO Attribute Details metadata: write to "MD_Metadata/featureType"

def _update_attribute_details(self, **update_props):
        """ Update operation for ISO Attribute Details metadata: write to "MD_Metadata/featureType" """

        tree_to_update = update_props['tree_to_update']
        xpath = self._data_map['_attr_citation']

        # Cannot write to remote file: remove the featureCatalogueCitation element

        self._attr_details_file_url = None
        remove_element(tree_to_update, xpath, True)

        return self._update_complex_list(**update_props)