remove unnecessary polyfills

Author: huozhi

packages/next/build/index.ts

@@ -59,7 +59,6 @@ import {
 import { __ApiPreviewProps } from '../server/api-utils'
 import loadConfig, { isTargetLikeServerless } from '../server/config'
 import { BuildManifest } from '../server/get-page-files'
-import '../server/node-polyfill-fetch'
 import { normalizePagePath } from '../server/normalize-page-path'
 import { getPagePath } from '../server/require'
 import * as ciEnvironment from '../telemetry/ci-info'

packages/next/build/utils.ts

@@ -1,4 +1,3 @@
-import '../server/node-polyfill-fetch'
 import chalk from 'next/dist/compiled/chalk'
 import getGzipSize from 'next/dist/compiled/gzip-size'
 import textTable from 'next/dist/compiled/text-table'

packages/next/server/dev/next-dev-server.ts

@@ -1,3 +1,4 @@
+import '../node-polyfill-fetch'
 import type { __ApiPreviewProps } from '../api-utils'
 import type { CustomRoutes } from '../../lib/load-custom-routes'
 import type { FetchEventResult } from '../web/types'

packages/next/server/dev/static-paths-worker.ts

@@ -2,7 +2,6 @@ import type { GetStaticPaths } from 'next/types'
 import type { NextConfigComplete } from '../config-shared'
 import type { UnwrapPromise } from '../../lib/coalesced-function'
 
-import '../node-polyfill-fetch'
 import { buildStaticPaths } from '../../build/utils'
 import { loadComponents } from '../load-components'
 import { setHttpAgentOptions } from '../config'