def delete_dns_server(self, service_name, deployment_name, dns_server_name):
_validate_not_none('<STR_LIT>', service_name)<EOL>_validate_not_none('<STR_LIT>', deployment_name)<EOL>_validate_not_none('<STR_LIT>', dns_server_name)<EOL>return self._perform_delete(<EOL>self._get_dns_server_path(service_name,<EOL>deployment_name,<EOL>dns_server_name),<EOL>as_async=True)<EOL>
Deletes a DNS server from a deployment.

service_name:
    The name of the service.
deployment_name:
    The name of the deployment.
dns_server_name:
    Name of the DNS server that you want to delete.