Removing govuk utility classes

app/templates/views/edit-sms-template.html

@@ -44,7 +44,6 @@
             width='1-1',
             hint=content_hint,
             rows=5,
-            extra_form_group_classes='govuk-!-margin-bottom-2',
             placeholder='Edit me! Check out the Personalization section below for details on cool ((stuff)) you can do with your messages!'
           ) }}
           {% if current_user.platform_admin %}