diff --git a/advanced_search.module b/advanced_search.module
index d398f6c..25e3307 100644
--- a/advanced_search.module
+++ b/advanced_search.module
@@ -51,19 +51,6 @@ function advanced_search_library_info_alter(&$libraries, $extension) {
   }
 }
 
-/**
- * Implements hook_search_api_solr_converted_query_alter().
- */
-function advanced_search_search_api_solr_converted_query_alter(SolariumQueryInterface $solarium_query, DrupalQueryInterface $search_api_query) {
-  // We must modify the query itself rather than the representation the
-  // search_api presents as it is not possible to use the 'OR' operator
-  // with it as it converts conditions into separate filter queries.
-  // Additionally filter queries do not affect the score so are not
-  // suitable for use in the advanced search queries.
-  $advanced_search_query = new AdvancedSearchQuery();
-  $advanced_search_query->alterQuery(\Drupal::request(), $solarium_query, $search_api_query);
-}
-
 /**
  * Implements hook_form_form_id_alter().
  */