Revert "Reland "Add heirachical module names to torchFX graph.node" (#90205)"
This reverts commit 6b7efac3c9ea5c9fbfb18069abd254ad7d9a103e.
Reverted https://github.com/pytorch/pytorch/pull/90205 on behalf of https://github.com/seemethere due to Reverting since this caused failures in internal systems, see https://fb.workplace.com/groups/802176577445480/posts/894284641568006 for discussion
