diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-debug.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-debug.js
deleted file mode 100644
index a2df1208ebf..00000000000
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-debug.js
+++ /dev/null
@@ -1,46 +0,0 @@
-YUI.add('moodle-filter_mathjax-loader', function (Y, NAME) {
-
-// 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/>.
-
-/**
- * Mathjax JS Loader.
- *
- * @package    filter_mathjax
- * @copyright  2014 Damyon Wiese  <damyon@moodle.com>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-M.filter_mathjax = M.filter_mathjax || {
-    init : function(params) {
-        // Add an inline configuration tag to the head.
-        var config = Y.Node.create('<script type="text/x-mathjax-config"></script>');
-        config.setHTML(params.mathjaxconfig);
-        Y.one('head').append(config);
-        // Load the mathjax library.
-        Y.Get.js(params.mathjaxurl, function() {
-            // Tell mathjax to call back for the language files.
-            debugger;
-            MathJax.Localization.addTranslation(params.lang,null,{
-                menuTitle: params.langdescription,
-                directory: M.cfg.wwwroot + "/filter/mathjax/language.php?lang="
-            });
-        });
-
-
-    }
-};
-
-
-}, '@VERSION@', {"requires": ["get", "node"]});
diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-min.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-min.js
deleted file mode 100644
index 6970a0f8d52..00000000000
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader-min.js
+++ /dev/null
@@ -1 +0,0 @@
-YUI.add("moodle-filter_mathjax-loader",function(e,t){M.filter_mathjax=M.filter_mathjax||{init:function(t){var n=e.Node.create('<script type="text/x-mathjax-config"></script>');n.setHTML(t.mathjaxconfig),e.one("head").append(n),e.Get.js(t.mathjaxurl,function(){debugger;MathJax.Localization.addTranslation(t.lang,null,{menuTitle:t.langdescription,directory:M.cfg.wwwroot+"/filter/mathjax/language.php?lang="})})}}},"@VERSION@",{requires:["get","node"]});
diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader.js
deleted file mode 100644
index a2df1208ebf..00000000000
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjax-loader/moodle-filter_mathjax-loader.js
+++ /dev/null
@@ -1,46 +0,0 @@
-YUI.add('moodle-filter_mathjax-loader', function (Y, NAME) {
-
-// 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/>.
-
-/**
- * Mathjax JS Loader.
- *
- * @package    filter_mathjax
- * @copyright  2014 Damyon Wiese  <damyon@moodle.com>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-M.filter_mathjax = M.filter_mathjax || {
-    init : function(params) {
-        // Add an inline configuration tag to the head.
-        var config = Y.Node.create('<script type="text/x-mathjax-config"></script>');
-        config.setHTML(params.mathjaxconfig);
-        Y.one('head').append(config);
-        // Load the mathjax library.
-        Y.Get.js(params.mathjaxurl, function() {
-            // Tell mathjax to call back for the language files.
-            debugger;
-            MathJax.Localization.addTranslation(params.lang,null,{
-                menuTitle: params.langdescription,
-                directory: M.cfg.wwwroot + "/filter/mathjax/language.php?lang="
-            });
-        });
-
-
-    }
-};
-
-
-}, '@VERSION@', {"requires": ["get", "node"]});