doc: remove google analytics

I doubt anyone is looking at it, let's stop feeding the beast.

Author: bluetech

doc/_templates/layout.html

@@ -18,16 +18,3 @@ <h1>execnet: Distributed Python deployment and communication</h1>
 </code>
 </div>
 {% endblock %}
-
-{% block footer %}
-{{ super() }}
-<script type="text/javascript">
-var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
-document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
-</script>
-<script type="text/javascript">
-try {
-var pageTracker = _gat._getTracker("UA-7597274-7");
-pageTracker._trackPageview();
-} catch(err) {}</script>
-{% endblock %}