Tap the trash can!
Before your site is live on the internet using Universe on the Web, you can manage all of the links before publishing. To remove a link from your 'link in bio' site, tap the trash can on the right hand side of the link type.
To fully customize and manage your site, you'll need to download the Universe app from the Apple App Store. Once the app is downloaded, sign in using the method you set on Universe on the Web and begin editing!