diff --git a/app/assets/javascripts/discourse/lib/highlight.js b/app/assets/javascripts/discourse/lib/highlight.js
deleted file mode 100644
index 0a6b9e0b271..00000000000
--- a/app/assets/javascripts/discourse/lib/highlight.js
+++ /dev/null
@@ -1,109 +0,0 @@
-// forked cause we may want to amend the logic a bit
-/*
- * jQuery Highlight plugin
- *
- * Based on highlight v3 by Johann Burkard
- * http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html
- *
- * Code a little bit refactored and cleaned (in my humble opinion).
- * Most important changes:
- *  - has an option to highlight only entire words (wordsOnly - false by default),
- *  - has an option to be case sensitive (caseSensitive - false by default)
- *  - highlight element tag and class names can be specified in options
- *
- * Usage:
- *   // wrap every occurrance of text 'lorem' in content
- *   // with <span class='highlight'> (default options)
- *   $('#content').highlight('lorem');
- *
- *   // search for and highlight more terms at once
- *   // so you can save some time on traversing DOM
- *   $('#content').highlight(['lorem', 'ipsum']);
- *   $('#content').highlight('lorem ipsum');
- *
- *   // search only for entire word 'lorem'
- *   $('#content').highlight('lorem', { wordsOnly: true });
- *
- *   // don't ignore case during search of term 'lorem'
- *   $('#content').highlight('lorem', { caseSensitive: true });
- *
- *   // wrap every occurrance of term 'ipsum' in content
- *   // with <em class='important'>
- *   $('#content').highlight('ipsum', { element: 'em', className: 'important' });
- *
- *   // remove default highlight
- *   $('#content').unhighlight();
- *
- *   // remove custom highlight
- *   $('#content').unhighlight({ element: 'em', className: 'important' });
- *
- *
- * Copyright (c) 2009 Bartek Szopka
- *
- * Licensed under MIT license.
- *
- */
-
-jQuery.extend({
-    highlight: function (node, re, nodeName, className) {
-        if (node.nodeType === 3) {
-            var match = node.data.match(re);
-            if (match) {
-                var highlight = document.createElement(nodeName || 'span');
-                highlight.className = className || 'highlight';
-                var wordNode = node.splitText(match.index);
-                wordNode.splitText(match[0].length);
-                var wordClone = wordNode.cloneNode(true);
-                highlight.appendChild(wordClone);
-                wordNode.parentNode.replaceChild(highlight, wordNode);
-                return 1; //skip added node in parent
-            }
-        } else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
-                !/(script|style)/i.test(node.tagName) && // ignore script and style nodes
-                !(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
-            for (var i = 0; i < node.childNodes.length; i++) {
-                i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
-            }
-        }
-        return 0;
-    }
-});
-
-jQuery.fn.unhighlight = function (options) {
-    var settings = { className: 'highlight-strong', element: 'span' };
-    jQuery.extend(settings, options);
-
-    return this.find(settings.element + "." + settings.className).each(function () {
-        var parent = this.parentNode;
-        parent.replaceChild(this.firstChild, this);
-        parent.normalize();
-    }).end();
-};
-
-jQuery.fn.highlight = function (words, options) {
-    var settings = { className: 'highlight-strong', element: 'span', caseSensitive: false, wordsOnly: false };
-    jQuery.extend(settings, options);
-
-    if (words.constructor === String) {
-        words = [words];
-    }
-    words = jQuery.grep(words, function(word){
-      return word !== '';
-    });
-    words = jQuery.map(words, function(word) {
-      return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
-    });
-    if (words.length === 0) { return this; }
-
-    var flag = settings.caseSensitive ? "" : "i";
-    var pattern = "(" + words.join("|") + ")";
-    if (settings.wordsOnly) {
-        pattern = "\\b" + pattern + "\\b";
-    }
-    var re = new RegExp(pattern, flag);
-
-    return this.each(function () {
-        jQuery.highlight(this, re, settings.element, settings.className);
-    });
-};
-