diff --git a/admin/settings/plugins.php b/admin/settings/plugins.php
index a85eee8ffae5a..8d290287fa92e 100644
--- a/admin/settings/plugins.php
+++ b/admin/settings/plugins.php
@@ -304,8 +304,6 @@
 // Question type settings
 if ($hassiteconfig || has_capability('moodle/question:config', $systemcontext)) {
     // Question behaviour settings.
-    require_once("$CFG->libdir/pluginlib.php");
-    $allplugins = plugin_manager::instance()->get_plugins();
     $ADMIN->add('modules', new admin_category('qbehavioursettings', new lang_string('questionbehaviours', 'admin')));
     $ADMIN->add('qbehavioursettings', new admin_page_manageqbehaviours());