Mutual Authentication TLS in RESTCONF

Thanks. I am following the example mentioned in the previous link, my concern is to use curl command without user and password as I am using certs in the command. For example in command:
curl -kivu admin:admin --cacert ./root-ca-cert-1.pem --key ./client.key.pem --cert ./client.cert.pem https://localhost:8888/restconf/

Can I get it work without user and password? Thanks in advance.