doc(cloudflare) Remove outdated notes (#127)

Author: vicb

pages/cloudflare/index.mdx

@@ -45,12 +45,10 @@ We will update the list as we progress towards releasing 1.0.
 - [x] [Image optimization](https://nextjs.org/docs/app/building-your-application/optimizing/images) (See [this guide](/cloudflare/howtos/image) to configure [Cloudfare Images](https://developers.cloudflare.com/images/))
 - [x] [Partial Prerendering (PPR)](https://nextjs.org/docs/app/building-your-application/rendering/partial-prerendering)
 - [x] [Pages Router](https://nextjs.org/docs/pages)
-- [x] [Incremental Static Regeneration (ISR)](https://nextjs.org/docs/app/building-your-application/data-fetching/incremental-static-regeneration) <sup>1</sup>
+- [x] [Incremental Static Regeneration (ISR)](https://nextjs.org/docs/app/building-your-application/data-fetching/incremental-static-regeneration)
 - [x] [Support for after](https://nextjs.org/blog/next-15-rc#executing-code-after-a-response-with-nextafter-experimental)
 - [ ] [Composable Caching](https://nextjs.org/blog/composable-caching) (`'use cache'`) is a Next.js 15 feature and not supported yet.
 
-<sup>1</sup> Only the `direct` mode is supported at the moment, and is not suitable for production.
-
 We welcome both contributions and feedback!
 
 ### Windows support