Remove/Disable a particular Web Preview

I shared a link to the web preview of a build and now I want to remove it. How do I do that?

After messing around, I discovered a “way” to do it. You can go to the settings and disable web-preview entirely. That will delete any and all previews. Then you can re-enable it.

I still couldn’t find a place to just disable a particular one, but maybe this will help others.