Finish removing MathJax from Live Preview.

lib/gollum/frontend/public/gollum/livepreview/index.html

@@ -39,11 +39,5 @@ var require = {
 <script src='js/sundown.js'></script>
 <script src='js/md_sundown.js'></script>
 <script src='js/livepreview.js'></script>
-<!--<script>(function(d,j){
-j = d.createElement('script');
-j.src = 'https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
-(d.head || d.getElementsByTagName('head')[0]).appendChild(j);
-}(document));
-</script>-->
 </body>
 </html>

lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js

@@ -269,8 +269,6 @@ var makePreviewHtml = function () {
   // Update the text using feature detection to support IE.
   // preview.innerHTML = text; // this doesn't work on IE.
   previewSet( text );
-  // MathJax is loaded asynchronously.
-  if (typeof MathJax != 'undefined') { MathJax.Hub.Typeset( content ); }
 
   // highlight code blocks.
   var codeElements = preview.getElementsByTagName( 'pre' );