Remove Matomo (#2013)

_includes/scripts.html

@@ -3,12 +3,3 @@
 <script src="/assets/js/bootstrap.min.js?v=4"></script>
 <script src="/assets/js/sortable.min.js?v=4"></script>
 <script src="/assets/js/main.js?v=5"></script>
-
-<!--
-  Matomo is the leading open-source analytics platform:
-  - Free open-source software
-  - 100% data ownership
-  - User privacy protection
--->
-
-<noscript><img src="https://stats.privacytools.io/matomo.php?idsite=1&amp;rec=1" class="border-0" alt=""/></noscript>