refactor: remove deprecated reactivity transform (#487)

README.md

@@ -48,8 +48,6 @@ Mocking up web app with <b>Vitesse</b><sup><em>(speed)</em></sup><br>
 
 - 🔥 Use the [new `<script setup>` syntax](https://github.com/vuejs/rfcs/pull/227)
 
-- 🤙🏻 [Reactivity Transform](https://vuejs.org/guide/extras/reactivity-transform.html) enabled
-
 - 📥 [APIs auto importing](https://github.com/antfu/unplugin-auto-import) - use Composition API and others directly
 
 - 🖨 Static-site generation (SSG) via [vite-ssg](https://github.com/antfu/vite-ssg)