If you write a message to someone you aren't connected to, a block is add between search members and members that you are writing with that says "Message requests" and below that "# pending message". (See screenshot).

If the person never respond to your message, then it seem this message request block is stuck there. And that's super annoying as it's taking up prime real estate. "

Please add a way to either be able to withdraw messages or put the Message requests in another place where it isn't taking up prime space.

In fact, just looking at the elipsis menu options, there is already a option in the dropdown for "Pending Messages" so I recommend simply remove the Message requests for the general Message folder and only showing the message if the person you wrote to write you back. Other wise, it can just be viewed if you select "Pending Messages"