Revert "Added dynamic shape POC (#81093)"
This reverts commit 8169a85dc64710bfe1d8425e32636f0d66957d38.
Reverted https://github.com/pytorch/pytorch/pull/81093 on behalf of https://github.com/janeyx99 due to Broke slow tests on trunk https://hud.pytorch.org/pytorch/pytorch/commit/8169a85dc64710bfe1d8425e32636f0d66957d38.