Deletes the information for the given contentid under the given model.

        This method maps to
        https://github.com/exosite/docs/tree/master/provision#delete---delete-content

        Args:
            key: The CIK or Token for the device
            model:

def content_remove(self, key, model, contentid):
        """Deletes the information for the given contentid under the given model.

        This method maps to
        https://github.com/exosite/docs/tree/master/provision#delete---delete-content

        Args:
            key: The CIK or Token for the device
            model:
        """
        path = PROVISION_MANAGE_CONTENT + model + '/' + contentid
        return self._request(path, key, '', 'DELETE', self._manage_by_cik)