Merge pull request #155 from ember-learn/revert-prefix

Revert "add prefixHeaderId to on-this-page links"

Author: mansona

addon/components/on-this-page.hbs

@@ -5,7 +5,7 @@
     <ul>
       {{#each @toc as |toc|}}
         <li>
-          <a href="#{{this.headerPrefix}}{{toc.id}}">{{toc.text}}</a>
+          <a href="#{{toc.id}}">{{toc.text}}</a>
         </li>
       {{/each}}
     </ul>