removed unnecessary links to cdn

the js/css files had been already locally and linked in ssi includes

Author: Orbiter

html/index.html

@@ -20,9 +20,6 @@
  <meta name="twitter:url" content="http://susi.ai">
  <meta name="twitter:description" content="Chat with a Personal Assistant: Artificial Intelligence for Information Retrieval">
  <meta name="twitter:image" content="http://susi.ai/artwork/susi_org_sticker.png">
- <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
- <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
- <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  <!-- Your application bootstrap -->
  <script type="text/javascript">
  /**