diff --git a/lib/cronlib.php b/lib/cronlib.php
deleted file mode 100644
index 5201fb6c965..00000000000
--- a/lib/cronlib.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Cron functions.
- *
- * @package    core
- * @subpackage admin
- * @copyright  1999 onwards Martin Dougiamas  http://dougiamas.com
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die;
-
-debugging(
-    'Inclusion of lib/cronlib.php is no longer required. ' .
-    'Please update your code to use the new \\core\\cron class.',
-    DEBUG_DEVELOPER
-);