Remove qwen3vl redundant code
Author: Xqle
Pull request: yes

# What does this PR do?
As per title.
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## Who can review?

@zucchini-nlp

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Comments:
**[For maintainers]** Suggested jobs to run (before merge)

run-slow: qwen2_5_vl, qwen2_vl, qwen3_vl

see https://github.com/huggingface/transformers/pull/41836