Merge pull request jupyter#476 from jupyter/palewire-patch-8

Cut polyfill stuff for ancient IE browsers

Author: palewire

_includes/head.html

@@ -20,12 +20,5 @@
     <link href="{{site.baseurl}}/assets/apple-touch-icon-180x180.png" rel="apple-touch-icon" sizes="180x180" />
     <link href="{{site.baseurl}}/assets/icon-hires.png" rel="icon" sizes="192x192" />
     <link href="{{site.baseurl}}/assets/icon-normal.png" rel="icon" sizes="128x128" />
-
-    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
-    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
-    <!--[if lt IE 9]>
-        <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
-        <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
-    <![endif]-->
     <script>console.log('Welcome to Project Jupyter! Explore the various tools available and their corresponding documentation. If you are interested in contributing to the platform, please visit the community resources section at https://jupyter.org/community.html.')</script>
 </head>