Review request for JMC-6281: Removing forgotten hirt.se license text

[Marcus Hirt]

Hi all,

Please review this fix to remove some hirt.se license text that 
we missed to remove when open sourcing jmc.

Jira:   https://bugs.openjdk.java.net/browse/JMC-6281
Webrev: http://cr.openjdk.java.net/~hirt/JMC-6281/webrev.01/

Kind regards,
Marcus