Revert "fix: make sure body can be read using nodejs runtime in middleware"

packages/next/src/server/next-server.ts

@@ -1626,12 +1626,7 @@ export default class NextNodeServer extends BaseServer<
 
       result = await adapterFn({
         handler: middlewareModule.middleware || middlewareModule,
-        request: {
-          ...requestData,
-          body: !['HEAD', 'GET'].includes(params.request.method)
-            ? requestData.body?.cloneBodyStream()
-            : undefined,
-        },
+        request: requestData,
         page: 'middleware',
       })
     } else {

test/e2e/middleware-general/app/middleware-node.js

@@ -253,10 +253,6 @@ export async function middleware(request) {
     throw new Error('test error')
   }
 
-  if (url.pathname === '/request-body' && request.method === 'POST') {
-    return NextResponse.json(await request.json())
-  }
-
   const original = new URL(request.url)
   return NextResponse.next({
     headers: {

test/e2e/middleware-general/app/middleware.js

@@ -252,10 +252,6 @@ export async function middleware(request) {
     throw new Error('test error')
   }
 
-  if (url.pathname === '/request-body' && request.method === 'POST') {
-    return NextResponse.json(await request.json())
-  }
-
   const original = new URL(request.url)
   return NextResponse.next({
     headers: {

test/e2e/middleware-general/test/index.test.ts

@@ -824,17 +824,6 @@ describe('Middleware Runtime', () => {
         }/sha.json?hello=goodbye`,
       ])
     })
-
-    it(`should read request body`, async () => {
-      const body = { hello: 'world' }
-      const res = await fetchViaHTTP(next.url, '/request-body', undefined, {
-        body: JSON.stringify(body),
-        headers: { 'content-type': 'application/json' },
-        method: 'POST',
-      })
-
-      expect(await res.json()).toEqual(body)
-    })
   }
   describe('with i18n', () => {
     setup({ i18n: true })