diff --git a/phpBB/phpbb/db/tools/sqlite3.php b/phpBB/phpbb/db/tools/sqlite3.php
deleted file mode 100644
index 1a428b40a8..0000000000
--- a/phpBB/phpbb/db/tools/sqlite3.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-/**
- *
- * This file is part of the phpBB Forum Software package.
- *
- * @copyright (c) phpBB Limited <https://www.phpbb.com>
- * @license GNU General Public License, version 2 (GPL-2.0)
- *
- * For full copyright and license information, please see
- * the docs/CREDITS.txt file.
- *
- */
-
-namespace phpbb\db\tools;
-
-/**
- * Database Tools for handling cross-db actions such as altering columns, etc.
- * Currently not supported is returning SQL for creating tables.
- *
- * @deprecated 4.0.0-a1
- */
-class sqlite3 extends doctrine
-{
-}