next.js

94489131 - Revert "Vendor `react@experimental` under an `experimentalReact` flag" (#48038)

Revert "Vendor `react@experimental` under an `experimentalReact` flag" (#48038) x-ref: [slack thread](https://vercel.slack.com/archives/C04DUD7EB1B/p1680804950611789?thread_ts=1680791613.468109&cid=C04DUD7EB1B) Reverts vercel/next.js#47759 fix NEXT-926