Can you post a screenshot of this "Develop Shortcut" list ?
Try pressing the Esc key on the keyboard, if that does not help, try quitting Lightroom and relaunch the application.
Let me know if it helps.
I just figured it out! It's pretty simple. Just click on the page and it will go away!
Thank you! I just clicked on the screen and it went away.
I think last time this happened to me I quit out of lightroom and when I restarted it was gone.