chore(deps): remove next-css from examples/antd (#10804)

* chore(deps): remove next-css

* Update examples/with-ant-design/package.json
Co-Authored-By: NJack <jacklee82814@gmail.com>

* Update examples/with-ant-design/pages/_app.js
Co-Authored-By: NJack <jacklee82814@gmail.com>

* chore(lint): fix a linting error
Co-authored-by: NJack <jacklee82814@gmail.com>

examples/with-ant-design/.babelrc

-{
-  "presets": ["next/babel"],
-  "plugins": [
-    [
-      "import",
-      {
-        "libraryName": "antd",
-        "style": "css"
-      }
-    ]
-  ]
-}

examples/with-ant-design/next.config.js

-/* eslint-disable */
-const withCss = require('@zeit/next-css')
-
-module.exports = withCss({
-  webpack: (config, { isServer }) => {
-    if (isServer) {
-      const antStyles = /antd\/.*?\/style\/css.*?/
-      const origExternals = [...config.externals]
-      config.externals = [
-        (context, request, callback) => {
-          if (request.match(antStyles)) return callback()
-          if (typeof origExternals[0] === 'function') {
-            origExternals[0](context, request, callback)
-          } else {
-            callback()
-          }
-        },
-        ...(typeof origExternals[0] === 'function' ? [] : origExternals),
-      ]
-
-      config.module.rules.unshift({
-        test: antStyles,
-        use: 'null-loader',
-      })
-    }
-    return config
-  },
-})

examples/with-ant-design/package.json

@@ -8,10 +8,8 @@
   },
   "dependencies": {
     "@zeit/next-css": "^1.0.1",
-    "antd": "^3.9.2",
-    "babel-plugin-import": "^1.9.1",
+    "antd": "^4.0.1",
     "next": "latest",
-    "null-loader": "2.0.0",
     "react": "^16.7.0",
     "react-dom": "^16.7.0"
   },

examples/with-ant-design/pages/_app.js

+import 'antd/dist/antd.css'
+
+export default function MyApp({ Component, pageProps }) {
+  return <Component {...pageProps} />
+}