Revert "[LTC] Make some LazyGraphExecutor private data structures protected (#90457)"
This reverts commit 93aa6e3e36c022a01076d84047acd58b59244348.
Reverted https://github.com/pytorch/pytorch/pull/90457 on behalf of https://github.com/clee2000 due to broke xla somehow https://hud.pytorch.org/pytorch/pytorch/commit/93aa6e3e36c022a01076d84047acd58b59244348 https://github.com/pytorch/pytorch/actions/runs/3659842773/jobs/6186552659
