Revert "land: Include charset=utf-8 with x-component Content-Type header" (#50472)
This change isn't necessary per
https://github.com/vercel/next.js/pull/50060#issuecomment-1562897282 and
doesn't alleviate the root issue that was attempting to be addressed
instead that is related to a different issue upstream which is being
investigated.
Reverts vercel/next.js#50314