revert NXP backend: Enable initial unit tests workflow

[JacobSzwejbka]

https://github.com/pytorch/executorch/actions/runs/15618919009/job/43998655145 has been failing on trunk. I believe this PR added it to CI so I would like to remove it since it I have no idea how to forward fix

ERROR: Could not find a version that satisfies the requirement neutron_converter_SDK_25_03 (from versions: none)
ERROR: No matching distribution found for neutron_converter_SDK_25_03

[pytorch-bot]

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✅ You can merge normally! (2 Unrelated Failures)

As of commit cd40a49 with merge base 0d3e750 ():

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / unittest-editable / linux / linux-job (gh) (similar failure)
  .ci/scripts/tests/test_gather_benchmark_configs.py::TestGatehrBenchmarkConfigs::test_generate_compatible_configs_quantized_llama_model

BROKEN TRUNK - The following job failed but was present on the merge base:

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

• pull / unittest / linux / linux-job (gh) (trunk failure)
  .ci/scripts/tests/test_gather_benchmark_configs.py::TestGatehrBenchmarkConfigs::test_generate_compatible_configs_quantized_llama_model

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[JacobSzwejbka]

https://github.com/pytorch/executorch/actions/runs/15618919009/job/43998655145 has been failing on trunk for a few days now.

Would like to revert this pr which is what I think added it to CI as I dont know how to fix

ERROR: Could not find a version that satisfies the requirement neutron_converter_SDK_25_03 (from versions: none)
ERROR: No matching distribution found for neutron_converter_SDK_25_03

cc @robert-kalmar

[mergennachin]

@robert-kalmar

It's been failing on trunk for a while. It was okay for a while and started failing. Did you change the server config by any chance?

See history

https://hud.pytorch.org/hud/pytorch/executorch/main/1?per_page=50&name_filter=unittest-nxp-neutron

In the meantime, I'm seeing if this will help. #11640

[mergennachin]

Hmm... I'm not sure, let's revert this for now, and fix properly.

[robert-kalmar]

@JacobSzwejbka , @mergennachin . Our IT is looking into it. They provided a fix, but the not yet working (https://github.com/pytorch/executorch/actions/runs/15708142928/job/44258832962?pr=11756)
So they have to continue the investigation.

As action item I requested them to provide me a report on weekly bases about blocked connection, once they fix it in order to monitor if legitimate traffic is not being blocked. There is a limited machines with which this is happening. Essentially only ExecuTorch's self-hosted runners are known so far to me, where the connection gets blocked. For instance the gihub's standard runners seems to work fine.