MAINT: remove `supernova` dependency
MAINT: remove `supernova` dependency

bmockler/MOSFiT,guillochon/MOSFiT,mnicholl/MOSFiT,guillochon/MOSFiT,guillochon/MOSFiT,villrv/MOSFiT,villrv/MOSFiT,guillochon/FriendlyFit,bmockler/MOSFiT,mnicholl/MOSFiT,mnicholl/MOSFiT