Revert "Add compat flag docs for FinalizationRegistry and WeakRef"#22239

nikitacano merged 1 commit intoproductioncloudflare/cloudflare-docs:productionfrom

revert-20668-ketan/add-js-weak-refcloudflare/cloudflare-docs:revert-20668-ketan/add-js-weak-refCopy head branch name to clipboard