A single analytics loading script and the tracking payload is larger than the gains from the removal of these tags. Most pages have more than one script and payload too.
This reminds me of a job I recently did for a company that had duplicate Google Analytics tags. I removed one thinking I was helping only to be yelled at when their numbers were cut in half the following month.
After I explained that they were getting incorrect information I was told "I know this isn't exactly ethical ..." yada yada. I fired that client.
Firefox has a tracker blocking mode that shows you all of the trackers. I counted 25 different tracker services being blocked on a single news article yesterday.
<!-- 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','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXX-Y', 'auto');
ga('send', 'pageview');
</script>
<!-- End Google Analytics -->
That's 455 bytes, even if you have an adblocker and don't load the external javascript. No amount of removing html, head, and body tags will overcome this.
