Removes the specified tags from contacts selected by contact IDs, emails, phone numbers or a segment.
At least one of contactIDs, emails, phones or segmentID is required.
Selectors can be combined and are applied additively — the tags are removed from the union of all
matched contacts: every contact in contactIDs, every contact matched by an address in emails,
every contact matched by a number in phones and every member of segmentID. A contact matched by
more than one selector is processed once. Emails and phones with no matching contact are silently ignored.
Untagging is performed asynchronously, so the tags may not disappear immediately.

Scopes:
contacts.write

Rate Limiting:
This endpoint is rate limited to 60 requests per minute.