From private correspondence. If you have an old config value in the database, we currently raise a setup issue which requires you to click into Config, delete the value, and then click again to return to the issues list. In the common case, it would be a better UX to have one-click delete.

Wishlistiness of this comes from:

• Seems slightly valuable to make the user confirm what they're deleting visually before destroying it? (Maybe show value on setup issue?)
• No other interactions work like this yet.