Support broadcast for quantized mul kernel (#30442)
Summary:
Since the tensor iterator supports the broadcast, we will just remove the assertion on input shapes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30442
Differential Revision: D19976562
Pulled By: lly-zero-one
fbshipit-source-id: 91b27fc8b2570f29d110c6df26eacdd16f587b9f
