To unadd someone on Snapchat, you need to first open the app, then visit the friends list. After that, tap and hold the person's name, choose Manage Friendship, then tap Remove Friend and confirm. They will be deleted from your friends, but no one will be informed.
To unadd someone on Snapchat, open the app, go to the Chat or Friends list, tap the person’s Bitmoji, select the three-dot menu, choose Remove Friend, and confirm. They’ll be removed, but you can re-add them later if needed again.