Revert D31902471: [nnc] Add support for dynamic shapes in TensorExprKernel
Test Plan: revert-hammer
Differential Revision:
D31902471 (https://github.com/pytorch/pytorch/commit/15a3c374e2b1adfec082dc13c113aa114616ab50)
Original commit changeset: d2729a38ba1a
fbshipit-source-id: 4c05de82e626bbf744df84fd2b914b66fd165a19
