Deletes the bulk recipient file from an envelope. This cannot be used if the envelope has been sent.
After using this, the
bulkRecipientsUri property is not returned in subsequent GET calls for the envelope, but the recipient will remain as a bulk recipient.
The external account number (int) or account ID Guid.
The envelope's GUID. Eg 93be49ab-afa0-4adf-933c-f752070d71ec