docs(module-tools): remove some useless code (#7124)

Author: Timeless0911

packages/document/module-doc/docs/zh/api/config/build-config.mdx

@@ -1664,7 +1664,7 @@ export default defineConfig({
 
 同时函数形式可以接收一个参数，为当前打包文件的输出路径
 
-````js title="modern.config.ts"
+```js title="modern.config.ts"
 export default defineConfig({
   buildConfig: {
     format: 'umd',
@@ -1677,7 +1677,4 @@ export default defineConfig({
     },
   },
 });
-```import { aliases } from '../../../../../../toolkit/utils/dist/compiled/browserslist';
-import { createElement } from 'react';
-
-````
+```