I want to remove the red message which says
Google Groups will no longer be supporting the Welcome Message feature. Starting 13 January, you won't be able to edit your welcome messages, but you will still be able to view and download the existing content. See this announcement for more information and other options for storing your content. [ Download Welcome Message Content ]
I tried making the message empty and I hoped that this red message would go away after 13 January, but it is still there and I find it ugly.
How can I remove it?