Revert "Update metadata ready tracking" (#68200)
Reverts vercel/next.js#67929
This is causing deployment test failures.
[x-ref](https://github.com/vercel/next.js/actions/runs/10103034192/job/27940614533#step:27:178)
Validated that it passes locally. For reviewers, you can validate by
comparing these 2 URLs:
<details>
<summary>Not Working</summary>
https://vtest314-e2e-tests-6j3mwq9jg-ztanner.vercel.app/metadata-error-with-boundary
</details>
<details>
<summary>Working</summary>
https://vtest314-e2e-tests-ihcxlytpd-ztanner.vercel.app/metadata-error-with-boundary
</details>
