elasticsearch_helper_content does not clean up old entry when changing node language

I added orphanCleanup() function to my custon module in the index() method.

   /**
   * {@inheritdoc}
   */
  public function index($source) {
    /** @var \Drupal\node\NodeInterface $source */

    foreach ($source->getTranslationLanguages() as $langcode => $language) {
      if ($source->hasTranslation($langcode)) {
        $translation = $source->getTranslation($langcode);
        if ($translation->isPublished()) {
          parent::index($translation);
        }
        else {
          parent::delete($translation);
        }
      }
    }
    \Drupal::messenger()->addMessage('Elasticsearch indexed ' . $source->label());

    $this->orphanCleanup($source);
  }

  /**
   * Remove entries from index when switching node language.
   *
   * If node does not have all translations and when changing the language
   * then the old entry will remain in the index. To fix this, we go though
   * all enabled languages and fetch data from Elasticsearch for languages
   * that there are no translations in Drupal.
   *
   * @param $source
   *   The data to be indexed.
   */
  private function orphanCleanup($source) {
    $all_languages = \Drupal::languageManager()->getLanguages();

    // If we are already saving to all language indexes then there can't be any
    // orphans left.
    if (count($all_languages) === count($source->getTranslationLanguages())) {
      return;
    }

    foreach ($all_languages as $langcode => $language) {
      try {
        $source_translation = $source->getTranslation($langcode);
      }
      catch (\InvalidArgumentException $e) {
        $params = [
          'index' => str_replace('{langcode}', $langcode, $this->pluginDefinition['indexName']),
          'type' => $this->pluginDefinition['typeName'],
          'id' => $source->id(),
        ];
        $result = $this->client->get($params);

        if ($result['found']) {
          $this->client->delete($params);
        }
      }
    }
  }