public: Remove mention of the Developer wiki

The Developer wiki is not maintained.

Author: jelly

templates/public/index.html

@@ -156,8 +156,6 @@ <h4>Development</h4>
         <li><a href="https://devblog.archlinux.page" title="Dev Blog">Dev Blog</a></li>
         <li><a href="https://gitlab.archlinux.org/archlinux/"
             title="Official Arch projects (git)">Projects in Git</a></li>
-        <li><a href="https://wiki.archlinux.org/title/DeveloperWiki"
-            title="Developer Wiki articles">Developer Wiki</a></li>
         <li><a href="https://rfc.archlinux.page"
             title="Arch Request for Comments">Request for Comments</a></li>
         <li><a href="/groups/"