Revert "use two pass reduction for deterministic reduction order (#11…

[atalman]

This reverts commit cc7ef43.

Manual revert because of the conflict in: test/inductor/test_cpu_repro.py , conflict with this PR: #118365

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @peterbell10 @ipiszy @yf225 @chenyang78 @kadeng @muchulee8 @aakhundov @ColinPeppler @amjames

[pytorch-bot]

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✅ You can merge normally! (5 Unrelated Failures)

As of commit d20c499 with merge base 5f3f8fd ():

FLAKY - The following jobs failed but were likely due to flakiness present on trunk:

• pull / linux-focal-cuda12.1-py3.10-gcc9 / test (default, 3, 5, linux.4xlarge.nvidia.gpu) (gh)
  dynamo/test_dynamic_shapes.py::DynamicShapesAotAutogradFallbackTests::test_aot_autograd_raises_invalid_leaf_set_dynamic_shapes
• rocm / linux-focal-rocm6.0-py3.8 / test (default, 1, 6, linux.rocm.gpu.2) (gh)
  dynamo/test_trace_rules.py::TraceRuleTests::test_torch_name_rule_map_updated

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / linux-focal-cuda12.1-py3.10-gcc9-sm86 / test (default, 5, 5, linux.g5.4xlarge.nvidia.gpu) (gh)
  inductor/test_torchinductor_dynamic_shapes.py::TestInductorDynamicCUDA::test_full_cuda
• pull / linux-focal-py3.12-clang10 / test (default, 3, 3, linux.2xlarge) (gh)
  RuntimeError: export/test_passes 1/1 failed
• rocm / linux-focal-rocm6.0-py3.8 / test (default, 4, 6, linux.rocm.gpu.2) (gh)
  inductor/test_torchinductor_dynamic_shapes.py::TestInductorDynamicCUDA::test_full_cuda

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[malfet]

Please mention in comment what conflicts you had to revert

[atalman]

@pytorchmergebot merge -f "most tests are passing"

[pytorchmergebot]

Merge started

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