Revert "Add cpp stack traces to our own reruns (#119408)"
This reverts commit 47182a8f4b5e36e280ca3595ba134f53499d2dc9.
Reverted https://github.com/pytorch/pytorch/pull/119408 on behalf of https://github.com/clee2000 due to iirc the default setting of env to None causes it to inherit the env of the calling process, I'll make a PR that makes it so that the old env vars don't disappear, and then re merge this on top of it. Reverting this because I think some important env vars are disappearing (specifically CI) ([comment](https://github.com/pytorch/pytorch/pull/119408#issuecomment-1955128676))
