We do have a plugin API to add keyboard shortcuts:
But we don’t yet have one for removing the shortcut.
The library we are using is a fork of ItsATrap, with documentation here. I expect it should not take too long to add one that removes the shortcut binding itself, and just a bit more work to remove it from shift + ?:
That said, we don’t yet have many requests to do this, so it’ll likely not be prioritised until we get more requests. I’m gonna add a pr-welcome as well.