fixed bug, unused config variable

mkdocs/themes/mkdocs/base.html

@@ -229,13 +229,7 @@
     {
         base_url | tojson
     }
-    },
-    shortcuts = {
-    {
-        config.theme.shortcuts | tojson
-    }
     }
-    ;
 </script>
 <script src="{{ 'js/base.js'|url }}" defer></script>
 {%- for path in extra_javascript %}