docs: remove unlisted topic from 'You will learn' in Compiler Introduction

Remove 'Using the compiler on your React library' from the YouWillLearn
callout since this topic is not covered on the page. The library usage
guide exists as a separate page at /reference/react-compiler/compiling-libraries.

Fixes #8387

Author: seojcarlos

src/content/learn/react-compiler/introduction.md

@@ -12,7 +12,6 @@ React Compiler is a new build-time tool that automatically optimizes your React
 * Getting started with the compiler
 * Incremental adoption strategies
 * Debugging and troubleshooting when things go wrong
-* Using the compiler on your React library
 
 </YouWillLearn>