form improvement

using theme clone

app/Resources/views/default/_flash_messages.html.twig

@@ -1,12 +1,3 @@
-{#
-   This is a template fragment designed to be included in other templates
-   See http://symfony.com/doc/current/book/templating.html#including-other-templates
-
-   A common practice to better distinguish between templates and fragments is to
-   prefix fragments with an underscore. That's why this template is called
-   '_flash_messages.html.twig' instead of 'flash_messages.html.twig'
-#}
-
 {% if app.session.started and app.session.flashBag.peekAll is not empty %}
     <div class="messages">
         {% for type, messages in app.session.flashBag.all %}