That's odd... I don't see that message in the 7.0 image I have to hand, which is MIT licensed (check the splash screen or Help > About). Also the MIT license file in the Dolphin repository goes back to the end of 2015.
In any case, D7.1 is the current stable version so I'd recommend moving to that (unless you have a pressing need to stay on D7.0).
Hope this helps,
John