fix: remove outdated documentation links for model configuration and Roo Code Cloud

Author: hannesrudolph

docs/update-notes/v3.28.9.mdx

@@ -23,8 +23,6 @@ Supernova is now roo/code-supernova-1-million with a 1,000,000‑token context w
 
 Quick start: https://app.roocode.com/l/supernova
 
-> **📚 Documentation**: See [Providers](/providers/) for model configuration details, and [Roo Code Cloud](/roo-code-cloud/what-is-roo-code-cloud) to use hosted models.
-
 ## QOL Improvements
 
 * **Reset logs you out of Roo Code Cloud**: Reset now also logs you out of Roo Code Cloud for a truly clean slate; the reset still completes even if logout fails. ([#8312](https://github.com/RooCodeInc/Roo-Code/pull/8312))