It can still be useful, I think.
Stone edge is generally the best attack.
But, since super effective damage is more important now than stab, fire blast can be useful against grass and steel types. Against ice and bug, stoneedge is better as it also does super effective damage, while having further stab boost. Steel resists rock so against a steel pokemon, fire blast fares a lot better. Fighting also resists stone, so against pure fighters again fire blast is better.
Crunch is also a good option for when TT is about to faint, and needs to do some damage with meager energy, or to waste opponent's shields.