diff --git a/tests/mock/sql_insert_buffer.php b/tests/mock/sql_insert_buffer.php
deleted file mode 100644
index ba09aa8d7f..0000000000
--- a/tests/mock/sql_insert_buffer.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-/**
-*
-* @package testing
-* @copyright (c) 2013 phpBB Group
-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
-*
-*/
-
-class phpbb_mock_sql_insert_buffer extends phpbb_db_sql_insert_buffer
-{
-	public function flush()
-	{
-		return (sizeof($this->buffer)) ? true : false;
-	}
-
-	public function get_buffer()
-	{
-		return $this->buffer;
-	}
-}