Remove Default Build Configurations

[mindgrub-rkoch]

After reading through the man page for liftoffrc, I have been able to successfully add new build configurations to the Xcode project, but I don't see the ability to exclude the default Debug and Release configurations.

Is this possible? And if not, Could you please add this as a feature request?

[gfontenot]

I'm not sure that it's possible. Noting this as a feature request.