Revert D24024606: [FX] Shape propagation example
Test Plan: revert-hammer
Differential Revision:
D24024606 (https://github.com/pytorch/pytorch/commit/ac9a708ed0aba8b1f8d258247219c86077d6d0b1)
Original commit changeset: 5340eab20f80
fbshipit-source-id: f465eb5e8e994b3b0bedbc779901f76b9ab16f02
