rip gauges tracking

docs/_includes/footer.html

@@ -47,16 +47,3 @@ Holder.addTheme('gray', {
   fontweight: 'normal'
 })
 </script>
-
-<script>
-  var _gauges = _gauges || [];
-  (function() {
-    var t   = document.createElement('script');
-    t.async = true;
-    t.id    = 'gauges-tracker';
-    t.setAttribute('data-site-id', '4f0dc9fef5a1f55508000013');
-    t.src = '//secure.gaug.es/track.js';
-    var s = document.getElementsByTagName('script')[0];
-    s.parentNode.insertBefore(t, s);
-  })();
-</script>