Drop tracking scripts (#1507)

Since this is now a pure community documentation one should self-host,
there is really no need for any tracking scripts.

Author: hashworks

source/_templates/head.html

@@ -5,61 +5,3 @@
 <link rel="preload" href="{{ pathto('_static/fonts/inter/Inter-Medium.woff2', 1) }}" as="font" type="font/woff2" crossorigin>
 <link rel="preload" href="{{ pathto('_static/fonts/inter/Inter-Bold.woff2', 1) }}" as="font" type="font/woff2" crossorigin>
 <link rel="preconnect" href="https://E1CSOK3UC2-dsn.algolia.net" crossorigin />
-
-<!-- Google Tag Manager: docs.min.io -->
-<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-56L9FLVL');</script>
-
-<!-- Google Tag Manager: main -->
-<script>
-    (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-    new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-    j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-    'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-    })(window,document,'script','dataLayer','GTM-TWQNHTD');
-</script>
-
-<!-- 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-56860620-1', 'auto');
-    ga('send', 'pageview');
-</script>
-
-<!-- Linkedin -->
-<script>
-    _linkedin_partner_id = "1153348";
-    window._linkedin_data_partner_ids = window._linkedin_data_partner_ids || [];
-    window._linkedin_data_partner_ids.push(_linkedin_partner_id);
-
-    (function(l) {
-    if (!l){window.lintrk = function(a,b){window.lintrk.q.push([a,b])};
-    window.lintrk.q=[]}
-    var s = document.getElementsByTagName("script")[0];
-    var b = document.createElement("script");
-    b.type = "text/javascript";b.async = true;
-    b.src = "https://snap.licdn.com/li.lms-analytics/insight.min.js";
-    s.parentNode.insertBefore(b, s);})(window.lintrk);
-</script>
-
-<!-- Leadfeeder -->
-<script>
-    (function(){
-        window.ldfdr = window.ldfdr || {};
-        (function(d, s, ss, fs){
-        fs = d.getElementsByTagName(s)[0];
-        function ce(src){
-            var cs  = d.createElement(s);
-            cs.src = src;
-            setTimeout(function(){fs.parentNode.insertBefore(cs,fs)}, 1);
-        }
-        ce(ss);
-        })(document, 'script', 'https://sc.lfeeder.com/lftracker_v1_DzLR5a5kKJA7BoQ2.js');
-    })();
-</script>