I had a square d qo250gfi with a neutral wire I want to replace it wi th a qo260gfi with no neutral wire on a hot tub that requires two hots and a ground at 230 volts can it be done

Are you saying that the 2 pole 60 amp breaker "does not" have a white lead?

A) Why are you replacing it with a larger breaker?

B) All GFI breakers do require the line neutral connected. If the breaker does not have a tail then it either requires a jumper wire to the neutral bar (which I have never seen on any GFI breaker), or the tail was cut off and the breaker is useless.