[Model] Port deepseek-vl2 processor and remove deepseek_vl2 dependency

[Isotr0py]

• https://github.com/deepseek-ai/DeepSeek-VL2 is not compatible with transformers >= 4.48.0, which may cause deepseek-vl2 model broken after we updating transformers to 4.48.0 in [Misc] Update to Transformers 4.48 #12120
• Porting the deepseek-vl2's processor to make the model compatible with transformers==4.48.0

[github-actions]

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[DarkLight1337]

Thanks for cleaning this up!

[mgoin]

LGTM