Revert "wip: default import"

This reverts commit 238e832.

Author: hi-ogawa

packages/plugin-rsc/examples/starter/src/client.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import * as React from 'react'
+import React from 'react'
 
 export function ClientCounter() {
   const [count, setCount] = React.useState(0)

packages/plugin-rsc/examples/starter/src/framework/entry.ssr.tsx

@@ -1,5 +1,5 @@
 import * as ReactClient from '@vitejs/plugin-rsc/ssr' // RSC API
-import * as React from 'react'
+import React from 'react'
 import type { ReactFormState } from 'react-dom/client'
 import * as ReactDOMServer from 'react-dom/server.edge'
 import { injectRSCPayload } from 'rsc-html-stream/server'

packages/plugin-rsc/src/plugin.ts

@@ -1958,7 +1958,7 @@ function generateResourcesCode(depsCode: string) {
   }
 
   return `
-    import * as __vite_rsc_react__ from "react";
+    import __vite_rsc_react__ from "react";
     export const Resources = (${ResourcesFn.toString()})(__vite_rsc_react__, ${depsCode});
   `
 }
@@ -1983,7 +1983,7 @@ export async function transformRscCssExport(options: {
   })
   if (result.output.hasChanged()) {
     if (!options.code.includes('__vite_rsc_react__')) {
-      result.output.prepend(`import * as __vite_rsc_react__ from "react";`)
+      result.output.prepend(`import __vite_rsc_react__ from "react";`)
     }
     result.output.append(`
 function __vite_rsc_wrap_css__(value, name) {