docs: def _remove_csv_from_section(d, pc):
      """
      Remove CSV from metadata in this section
      :param dict d: Metadata
      :param str pc: Paleo or chron
      :return dict: Modified metadata
      """
      logger_jsons.info("enter remove_csv_from_json: {}".format(pc))
  
      for table, table_content in d[pc].items():
          for column, column_content in table_content['columns'].items():
              try:
                  # try to delete the values key entry
                  del column_content['values']
              except KeyError as e:
                  # if the key doesn't exist, keep going
                  logger_jsons.debug("remove_csv_from_json: KeyError: {}, {}".format(pc, e))
  
      logger_jsons.info("exit remove_csv_from_json: {}".format(pc))
      return d