Clean up and update content

_includes/externals/disqus.html

@@ -1,16 +0,0 @@
-{% if site.author.disqus %}
-<div id="disqus_thread"></div>
-<script type="text/javascript">
-    /* * * CONFIGURATION VARIABLES * * */
-    var disqus_shortname = '{{ site.author.disqus }}';
-
-    /* * * DON'T EDIT BELOW THIS LINE * * */
-    (function() {
-        var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
-        dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
-        (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
-    })();
-</script>
-<noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript" rel="nofollow">comments powered by Disqus.</a></noscript>
-
-{% endif %}

_includes/externals/google_analytics.html

@@ -1,11 +0,0 @@
-{% if site.google_analytics %}
-    <script>
-      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-      })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-      ga('create', '{{ site.google_analytics }}', 'auto');
-      ga('send', 'pageview');
-    </script>
-{% endif %}