chore: remove the seed command and the dev login

templates/security/login.html.twig

@@ -18,14 +18,6 @@
                 Mit myep anmelden
             </a>
 
-            {% if app.environment == 'dev' %}
-                <p class="pt-6 text-sm">
-                    <a class="underline text-gray-500" href="{{ path('app_dev_login') }}">
-                        Entwickler-Login
-                    </a>
-                </p>
-            {% endif %}
-
             <div class="fixed bottom-4 right-4 z-50 space-y-2">
                 {% include '_partials/_flashes.html.twig' %}
             </div>