You cannot remove the reference yourself but you can contact Airbnb and they will remove the reference for you. I have sent this post to @Airbnbhelp and they will follow up with you.
David
Superhost Ambassador ~ Host Club Community Leader ~ Experienced Co-Host
Hello, I have the same issue, but how do you "contact Airbnb"? Everywhere I look now to try to contact Airbnb refers me to this community portal instead. What's the number I should call these days?