refactor: revert autoloader change

Author: elliotcleary-wpe

wp-graphql-filter-query.php

@@ -24,10 +24,7 @@
 /**
  * Load files
  */
-// Load composer autoloader for dependencies
-if ( file_exists( __DIR__ . '/vendor/autoload.php' ) ) {
-	require_once __DIR__ . '/vendor/autoload.php';
-}
+require_once dirname( __DIR__ ) . '/wp-graphql/vendor/webonyx/graphql-php/src/Error/ClientAware.php';
 
 require_once __DIR__ . '/src/aggregate-query.php';
 require_once __DIR__ . '/src/filter-exception.php';