[inductor] fix TritonTemplateCaller.__str__ (#97578)
We remove TritonTemplateCaller.to_callable previously. But this method is still used in `TritonTemplateCaller.__str__` . The to_callable method in the base class will be used and raise an exception.
This PR fix TritonTemplateCaller.__str__ to return the string representation without calling to_callable.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/97578
Approved by: https://github.com/nmacchioni, https://github.com/ngimel
