You could most likely remove all the frame mounted hardware while supporting the tire and control arm and lower the control arm down away from the frame.
But then you have to hope that some how the bushing can be pressed out from that position.
If it can not, you’ll be dropping the control arm anyway to get it into a press.
Seems to me, you’ll be 90% there anyway and chances are better than even money you’ll have an issue removing the old bushing.
So may as well drop it out and make your life easier.