Revert "[state_dict][3/N] Cleanup StateDictOptions, make it more readable (#111108)"
This reverts commit b1db9590853d2ac205bc57c906d81935874daf09.
Reverted https://github.com/pytorch/pytorch/pull/111108 on behalf of https://github.com/huydhn due to Sorry for reverting your change, but I think it is cleaner to reland this change ([comment](https://github.com/pytorch/pytorch/pull/111108#issuecomment-1762504496))
