Deletes a connectedDomain object and removes related DNS records from
Google's Cloud DNS.
You must pass the relevant Wix account ID in the header of the call.
If you delete a "PRIMARY" domain, the site automatically uses the standard
URL for free Wix sites. Read more about
URLs of free Wix sites.
When you delete a subdomain, its CNAME record is deleted from Google's Cloud DNS.
Important: This call requires an account level API key and cannot be authenticated with the standard authorization header.