Revert "[CI/Build] Enable Qwen3.5 tests on CI" (#35763)

[zhewenl]

Revert of #35763

This reverts commit cc0d565 (merge commit of PR #35763).

Original PR: #35763
Failure count: 2 new CI failures linked to this PR
Build: https://buildkite.com/vllm/ci/builds/54051

Failing tests

• Multi-Modal Processor — Qwen3.5 models fail with ValueError: Video metadata is required but not found in mm input
• Multi-Modal Processor Test (CPU) — Same Qwen3.5 video metadata error

Root cause

PR #35763 enabled Qwen3.5 model tests in tests/models/registry.py. The Qwen3.5 models inherit from Qwen2-VL video parsing which requires video metadata, but the test harness does not provide it for these models, causing all Qwen3.5-related multimodal processor test cases to fail.

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Auto-generated by CI failure analyzer

[gemini-code-assist]

Code Review

This pull request aims to fix CI failures related to Qwen3.5 model tests by updating the test models in tests/models/registry.py to their -Instruct versions. This change is intended to resolve a ValueError caused by missing video metadata in the test environment. While the code change appears to be a valid fix, the pull request is titled and described as a 'Revert' of PR #35763. This is misleading because the changes are an update, not a reversion. For better clarity and maintainability of the project's history, I recommend updating the pull request title and description to accurately reflect that this is a fix. For example, a title like 'Fix: Update Qwen3.5 test models to resolve CI failures' would be more appropriate.

[Isotr0py]

I think #35797 has fixed it with correct patching

[DarkLight1337]

Closing as superseded by #35797