You have three options:
- Ask Vimeo to disable your app. All requests made by tokens associated with that app will fail.
- Disconnect your account from Vimeo at https://vimeo.com/settings/apps. This only works if your token was authenticated, and will remove all tokens generated by that app for your account.
- Contact Vimeo at https://vimeo.com/help/contact with the token, and we can delete it for you.