Description

After unregistering a block style using unregisterBlockStyle, it remains as a variation that can be customized in the global style editor.

As a developer, I expect that unregistering a default block style should remove it from the global style editor. I view this as an issue because an admin using the global style editor may try to edit something that is not a feature of the theme.

Step-by-step reproduction instructions

1. Unregister a core block style variation. (I used core/button, outline)
2. Confirm that it does not appear as a variation in the block editor.
3. Navigate to the global styles editor > Blocks > Button.
4. You will see "Outline" as a variation that you can customize.

Screenshots, screen recording, code snippet

Below is the js snipped I used to unregister the block style.

domReady(function () {
  unregisterBlockStyle('core/button', 'outline');
});

Environment info

• WordPress 6.4.2
• Gutenberg 17.5.0

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes