Revert D31732416: Add Handling of Cat in Shape Analysis
Test Plan: revert-hammer
Differential Revision:
D31732416 (https://github.com/pytorch/pytorch/commit/cc7de1df3bf8d86b16cc1064026a34138f0971d8)
Original commit changeset: 6d93ddf62c34
fbshipit-source-id: e2c9713177a7f783897e99dd71e631fb275c37da
