Remove placeholder description block from homepage

The logo + "public website" blurb read like an unfinished notice to
visitors; drop it and the now-unused home.description translation key.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

templates/website/home/index.html.twig

@@ -165,9 +165,4 @@
         <span class="text-secondary">Amsterdam, Auckland, or anywhere in between &mdash; as long as you're online, you can play together.</span>
     </div>
 </div>
-
-<div class="text-center py-4">
-    <img src="{{ asset('images/logo.png') }}" alt="{{ 'site.name'|trans }}" height="100" class="mb-3">
-    <p class="col-lg-8 mx-auto text-secondary">{{ 'home.description'|trans }}</p>
-</div>
 {% endblock %}