[SPMD][BE] Remove the legacy tracing code (#100858)
Remove the legacy tracing code as it cause several test and benchmark issues.
Differential Revision: [D45649123](https://our.internmc.facebook.com/intern/diff/D45649123/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100858
Approved by: https://github.com/wanchaol
