fix disqus comment disappear

layout/_partial/after-footer.ejs

@@ -2,14 +2,11 @@
 <% if (config.disqus_shortname){ %>
 <script>
   var disqus_shortname = '<%= config.disqus_shortname %>';
-  <% if (page.permalink){ %>
-  var disqus_url = '<%= page.permalink %>';
-  <% } %>
   (function(){
     var dsq = document.createElement('script');
     dsq.type = 'text/javascript';
     dsq.async = true;
-    dsq.src = '//' + disqus_shortname + '.disqus.com/<% if (page.comments) { %>embed.js<% } else { %>count.js<% } %>';
+    dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
     (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
   })();
 </script>