Cleanup unused JSX code (#11741)

Co-authored-by: Sarah Rainsberger <[email protected]>

.changeset/many-garlics-lick.md

@@ -0,0 +1,14 @@
+---
+'astro': major
+---
+
+Removes internal JSX handling and moves the responsibility to the `@astrojs/mdx` package directly. The following exports are also now removed:
+
+- `astro/jsx/babel.js`
+- `astro/jsx/component.js`
+- `astro/jsx/index.js`
+- `astro/jsx/renderer.js`
+- `astro/jsx/server.js`
+- `astro/jsx/transform-options.js`
+
+If your project includes `.mdx` files, you must upgrade `@astrojs/mdx` to the latest version so that it doesn't rely on these entrypoints to handle your JSX.

.changeset/perfect-fans-fly.md

@@ -0,0 +1,7 @@
+---
+'@astrojs/mdx': minor
+---
+
+Updates adapter server entrypoint to use `@astrojs/mdx/server.js`
+
+This is an internal change. Handling JSX in your `.mdx` files has been moved from Astro internals and is now the responsibility of this integration. You should not notice a change in your project, and no update to your code is required.

packages/astro/package.json

@@ -39,7 +39,7 @@
     "./astro-jsx": "./astro-jsx.d.ts",
     "./tsconfigs/*.json": "./tsconfigs/*",
     "./tsconfigs/*": "./tsconfigs/*.json",
-    "./jsx/*": "./dist/jsx/*",
+    "./jsx/rehype.js": "./dist/jsx/rehype.js",
     "./jsx-runtime": {
       "types": "./jsx-runtime.d.ts",
       "default": "./dist/jsx-runtime/index.js"

packages/astro/src/core/build/plugins/README.md

@@ -21,7 +21,7 @@ The emitted file has content similar to:
 ```js
 const renderers = [
   Object.assign(
-    { name: 'astro:jsx', serverEntrypoint: 'astro/jsx/server.js', jsxImportSource: 'astro' },
+    { name: 'astro:framework', serverEntrypoint: '@astrojs/framework/server.js' },
     { ssr: server_default },
   ),
 ];

packages/astro/src/core/create-vite.ts

@@ -28,7 +28,6 @@ import htmlVitePlugin from '../vite-plugin-html/index.js';
 import astroIntegrationsContainerPlugin from '../vite-plugin-integrations-container/index.js';
 import astroLoadFallbackPlugin from '../vite-plugin-load-fallback/index.js';
 import markdownVitePlugin from '../vite-plugin-markdown/index.js';
-import mdxVitePlugin from '../vite-plugin-mdx/index.js';
 import astroScannerPlugin from '../vite-plugin-scanner/index.js';
 import astroScriptsPlugin from '../vite-plugin-scripts/index.js';
 import astroScriptsPageSSRPlugin from '../vite-plugin-scripts/page-ssr.js';
@@ -136,7 +135,6 @@ export async function createVite(
 			astroEnv({ settings, mode, fs, sync }),
 			markdownVitePlugin({ settings, logger }),
 			htmlVitePlugin(),
-			mdxVitePlugin(),
 			astroPostprocessVitePlugin(),
 			astroIntegrationsContainerPlugin({ settings, logger }),
 			astroScriptsPageSSRPlugin({ settings }),