Remove story's creation time from the successstories template.

The creation time is the time the story was imported to Django,
but it was not the time the story itself was initially written.

Closes #1626

Author: Mariatta

templates/successstories/story_detail.html

@@ -31,7 +31,6 @@ <h1>{{ story.name }}</h1>
         <p class="company-byline">
             Written by <strong>{{ story.author }}</strong>,
             <a rel="external" href="{{ story.get_company_url }}">{{ story.get_company_name }}</a>
-            — <time datetime="{{ story.created|date:'c' }}">{{ story.created|date:'F Y' }}</time>
         </p>
 
         {{ story.content.rendered|safe }}