Remove leftover babel include regex (vercel#25101)

This regex is no longer needed since it no longer matches with the strip-ansi version that is bundled with Next.js



## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.

## Documentation / Examples

- [ ] Make sure the linting passes

packages/next/build/webpack-config.ts

@@ -287,7 +287,6 @@ export default async function getBaseWebpackConfig(
     /next[\\/]dist[\\/]next-server[\\/]lib/,
     /next[\\/]dist[\\/]client/,
     /next[\\/]dist[\\/]pages/,
-    /[\\/](strip-ansi|ansi-regex)[\\/]/,
   ]
 
   // Support for NODE_PATH