Removes extra banner from flash messages

app/views/projects/_flash_messages.html.haml

@@ -7,6 +7,5 @@
     = render 'shared/no_password'
     = render 'shared/shared_runners_minutes_limit', project: project
     = render 'shared/auto_devops_implicitly_enabled_banner', project: project
-    = render 'shared/auto_devops_implicitly_enabled_banner', project: project
     - if project.above_size_limit?
       = render 'above_size_limit_warning'