Back out "Add back AOPerModuleConfig for BC (#2282)"

[jarodhou]

Summary:
Original commit changeset: 674704044130

Original Phabricator Diff: D75899209

Rollback Plan:

Differential Revision: D76017968

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/2309

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❌ 3 New Failures

As of commit f985fef with merge base 35ffb26 ():

NEW FAILURES - The following jobs have failed:

• PR Label Check / Check PR Labels (gh)
  Process completed with exit code 1.
• Run Float8 Tests / test (H100, linux.aws.h100, --pre torch torchvision torchaudio --index-url https://download.pytor... / linux-job (gh)
  test/integration/test_vllm.py::TestVLLMIntegration::test_vllm_smoke_test[1-False-Int8DynamicActivationInt4WeightConfig(group_size=32,
• Run Float8 Tests / test (SM-89, linux.g6.4xlarge.experimental.nvidia.gpu, --pre torch --index-url https://download.p... / linux-job (gh)
  test/integration/test_vllm.py::TestVLLMIntegration::test_vllm_smoke_test[1-False-Float8DynamicActivationFloat8WeightConfig(activation_dtype=torch.float8_e4m3fn,

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[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D76017968