Clean up unnecessary example code

Author: pbishop16

tests/dummy/app/templates/index.hbs

@@ -1,58 +1 @@
 {{outlet}}
-
-{{#es-accordion as |accordionState|}}
-  {{#es-accordion/es-item
-    title="JavaScript Modules API"
-    status="shipped"
-    accordionItemIndex=0
-    accordionState=accordionState
-  }}
-    <p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Aut nisi culpa magnam quam sed exercitationem alias corrupti aspernatur illo nobis eos dicta esse quasi assumenda officiis nostrum, impedit voluptates commodi.</p>
-  {{/es-accordion/es-item}}
-  {{#es-accordion/es-item
-    title="Module Unification"
-    status="inProgress"
-    accordionItemIndex=1
-    accordionState=accordionState
-  }}
-    <p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Aut nisi culpa magnam quam sed exercitationem alias corrupti aspernatur illo nobis eos dicta esse quasi assumenda officiis nostrum, impedit voluptates commodi.</p>
-  {{/es-accordion/es-item}}
-  {{#es-accordion/es-item
-    title="Code Splitting"
-    status="rfcSubmitted"
-    accordionItemIndex=2
-    accordionState=accordionState
-  }}
-    <p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Aut nisi culpa magnam quam sed exercitationem alias corrupti aspernatur illo nobis eos dicta esse quasi assumenda officiis nostrum, impedit voluptates commodi.</p>
-  {{/es-accordion/es-item}}
-{{/es-accordion}}
-
-{{es-blog-heading
-  author="Sara Poster"
-  postDate="03-20-2018"
-  postUrl="https://emberjs.com/blog"
-  postTitle="Pretty Awesome Blog Post"
-}}
-
-{{es-blog-heading
-  author="John Blogger"
-  postType="guest"
-  postDate="03-20-2018"
-  postUrl="https://emberjs.com/blog"
-  postTitle="Pretty Awesome Blog Post"
-}}
-
-{{es-blog-heading
-  author="Samantha Blogger"
-  postType="syndicated"
-  postDate="03-20-2018"
-  postUrl="https://emberjs.com/blog"
-  postTitle="Pretty Awesome Blog Post"
-}}
-
-{{es-blog-heading
-  author="Brian Poster"
-  postType="syndicated"
-  postDate="03-20-2018"
-  postTitle="Pretty Awesome Blog Post"
-}}