Describe the bug

The new autodocs tag mechanism introduced in #26634 includes a deprecation warning about the docs.autodocs option in main.js being deprecated. It suggests removing that option completely and set the tag in preview.js instead.

After doing that and restarting the server, the deprecation warning is still shown.

To Reproduce

1. Start Storybook next with the autodocs option in main.js
2. See the warning in the console.
3. Stop the server
4. Remove the autodocs option from main.js
5. Start the server
6. See the warning in the console still

System

8.1.0-beta.0

Additional context

No response