diff --git a/src/Event/SolrDocumentAlterSubscriber.php b/src/Event/SolrDocumentAlterSubscriber.php
deleted file mode 100644
index 18662cd..0000000
--- a/src/Event/SolrDocumentAlterSubscriber.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-
-namespace Drupal\roblib_alter_solr;
-
-use Drupal\search_api\IndexInterface;
-use Drupal\search_api\Item\ItemInterface;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Drupal\search_api_solr\Event\SearchApiSolrEvents;
-
-/**
- * Provides a Solr document alter event subscriber.
- */
-class SolrDocumentAlterSubscriber implements EventSubscriberInterface {
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function getSubscribedEvents(): array {
-    return [
-      SearchApiSolrEvents::POST_CREATE_INDEX_DOCUMENT => 'alterSolrDocument',
-    ];
-  }
-
-  /**
-   * Alters the Solr document before it is sent to Solr.
-   *
-   * @param \Drupal\search_api_solr\Event\SearchApiSolrEvents $event
-   *   The Solr document alter event.
-   */
-  public function alterSolrDocument(SearchApiSolrEvents $event) {
-    $solrDocument = $event->getSolrDocument();
-    $item = $event->getItem();
-    $index = $event->getIndex();
-
-    if ($item->hasField('field_geo_area_name')) {
-      $value = $item->getField('field_geo_area_name')->getValue();
-      $solrDocument->addField('dc.coverage', $value);
-    }
-
-   }
-
-}