How to hide border around TRadioGroup

Question

I have two radiobuttons in a TRadioGroup. All the logic behind how they are supposed to work is fine. But the TRadioGroup controler has a frame around it that I thought I would be able to delete using a border property or something like that. But the control doesn't seem to have any property that bears any resemblance to a border/frame. How do I set the controler to not include a frame?