Don't need confusing nested comment about Backbone (see #2633).

app/assets/main.html

@@ -76,7 +76,7 @@
   <script src="/lib/ace/ace.js" defer></script>
   <script src="/javascripts/vendor.js" defer></script>
   <script src="/javascripts/aether.js" defer></script>
-  <script src="/javascripts/app.js" defer></script> <!-- it's all Backbone! -->
+  <script src="/javascripts/app.js" defer></script>
   <![endif]>
   <script>