Remove use of requirejs in template

Author: marthacryan

_includes/layouts/head.html

@@ -50,23 +50,6 @@
   <script src="https://cdn.plot.ly/plotly-{{site.data.jsversion.version}}.min.js"></script>
   {% endif %} {% if page.language == "julia" or page.language == "matlab" or
   page.language == "ggplot2" %}
-  <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.2/require.js"></script>
-  <script type="text/javascript">
-    if (typeof require !== "undefined") {
-      require.undef("plotly");
-      requirejs.config({
-        paths: {
-          plotly: [
-            "https://cdn.plot.ly/plotly-{{site.data.jsversion.version}}.min",
-          ],
-        },
-      });
-      require(["plotly"], function(Plotly) {
-        window._Plotly = Plotly;
-      });
-    }
-
-  </script>
   {% endif %} {% endif %}
   <!--
       //// Stylesheets