test fix

[metascroy]

Removes the coreml static int models job from backend tester. I'm not sure if the job every passed since inception.

cc @GregoryComer

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/20547

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❌ 1 New Failure, 2 Unrelated Failures

As of commit d02f17d with merge base 7e0151e ():

NEW FAILURE - The following job has failed:

• pull / test-multimodal-linux (gemma3-4b) / linux-job (gh)
  RuntimeError: Command docker exec -t 45234fbd34bb73e8b0e350a5a78801478e20fc9bd3d7db42148b8963cd170c36 /exec failed with exit code 139

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

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

• pull / unittest / windows / windows-job (gh) (trunk failure)
  Process completed with exit code 2.
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  Process completed with exit code 2.

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