public function removeNameStringReplaceLocationMapCallback(array &$form, FormStateInterface $form_state) {
    $num_name_string_replace_location_map = $form_state->get('num_name_string_replace_location_map');
    if ($num_name_string_replace_location_map > 1) {
      $remove_button = $num_name_string_replace_location_map - 1;
      $form_state->set('num_name_string_replace_location_map', $remove_button);
    }
    $form_state->setRebuild();
  }