feat: remove Google Analytics (GA) from the site (#845)

* feat: remove Google Analytics (GA) from the site

* Remove additional analytics related code

* Remove apis.google.com/js/plusone.js

* Update app/_includes/foot.html

Co-authored-by: Ulises Gascón <[email protected]>

---------

Co-authored-by: Michael Kühnel <[email protected]>
Co-authored-by: Ulises Gascón <[email protected]>

Author: 3 people

app/_includes/foot.html

@@ -201,13 +201,5 @@
     },
     this
   );
-  var _gaq = [
-    ["_setAccount", "UA-32956520-1"],
-    ["_setDomainName", ".yeoman.io"],
-    ["_trackPageview"],
-    ["_trackPageLoadTime"]
-  ];
-  $script("https://www.google-analytics.com/ga.js");
-  $script("https://apis.google.com/js/plusone.js");
-  $script("//platform.twitter.com/widgets.js");
+  $script("https://platform.twitter.com/widgets.js");
 </script>