In the sshd_config file, you can have it not disply motd and just your custom banner or you can have it display both or none at all. I personally would not let anyone SSH or Telnet in using the root user. Root should be restricted to logging into the console only. I would use SUDO for your daily admin chores.
What does it really make a difference if the MOTD and banners show up. That must take up a fraction of a second of your day.