[BE] Remove outdated script to check namespace BC

[janeyx99]

Now that we have bc_lint in CI, this script is no longer needed (nor has it ever been conclusive). I've already updated the Runbook to not need this script.

Suppressing bc_lint as this script is not shipped as a part of torch--it is not user facing! For context, this script is (rarely) used by the release notes manager to ensure BC across releases. It had been broken for at least since 2.6.

Stack from ghstack (oldest at bottom):

• Add automatic categorization for release notes: inductor (aoti) #151569
• -> [BE] Remove outdated script to check namespace BC #151453

[pytorch-bot]

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✅ You can merge normally! (3 Unrelated Failures)

As of commit 673bf4c with merge base e229ce3 ():

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

• BC Lint / bc_linter (gh) (suppressed by suppress-bc-linter)
  Process completed with exit code 1.

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

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

• pull / linux-focal-py3.13-clang10 / test (dynamo_wrapped, 1, 3, lf.ephemeral.linux.2xlarge) (gh) (trunk failure)
  'Test'
• pull / linux-focal-py3.9-clang10 / test (dynamo_wrapped, 1, 3, lf.ephemeral.linux.2xlarge) (gh) (trunk failure)
  'Test'

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[albanD]

Thanks!

[janeyx99]

@pytorchbot merge

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[janeyx99]

@pytorchbot merge

[pytorchmergebot]

Merge started

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