Back out "Make TorchScript Preserve Fully Qualified Class Name for Python Exceptions"
Summary: as title
Test Plan:
```
buck run mode/opt-split-dwarf -c=python.package_style=inplace //ai_infra/distributed_ai/pyper_test_framework/templates:pyper_release_v2 -- --model inline_cvr_post_imp_deterministic_shrunk_pyper_release_v2 --cluster TSCTestCluster --hpc_identity oncall_pyper_oncall --stage prod_offline_training --test_module training_platform
...
############## Start inline_cvr_post_imp_model Test Results Analysis ##############
I1226 22:03:56.789000 3346280 test_driver.py:139 UNKNOWN ] Test finished in 808.2743511786684 seconds.
+-------------------------+---------+------------------------+-----------------+
| Test Case | Status | Message | Model Entity ID |
+-------------------------+---------+------------------------+-----------------+
| SmallWorld_release_test | Success | finished successfully. | 987987491 |
+-------------------------+---------+------------------------+-----------------+
I1226 22:03:56.790000 3346280 test_driver.py:143 UNKNOWN ] test_run_id: 3d085f61-28d1-411d-bd27-940ea2554b23 use this id to find your run in scuba pyper_test_framework
I1226 22:03:56.792000 3346280 test_driver.py:160 UNKNOWN ] Calling cleanup
I1226 22:03:56.792000 3346280 training_platform_test_launcher.py:385 UNKNOWN ] Stopping launched jobs 1
I1226 22:03:59.563122 3346280 ClientSingletonManager.cpp:100] Shutting down Manifold ClientSingletonManager
```
Reviewed By: seemethere
Differential Revision: D33325936
fbshipit-source-id: 64414bf7061ad77e8ac12eb8abafee4043e0fa1e
