Remove stale and redundant _no_split_modules entries (#47645)
* Remove stale and redundant _no_split_modules entries
Some models list `_no_split_modules` entries naming classes that do not exist
anywhere in transformers, so `device_map` never matches them and the modules
they were meant to keep together get split across devices:
- idefics2: Idefics2DecoderLayer
- idefics3: Idefics3DecoderLayer
- video_llava: VideoLlavaVisionAttention
Others hardcode classes owned by a submodel that is loaded through the Auto*
classes. `post_init` already collects `_no_split_modules` from child submodels,
so these entries are redundant, and in blip_2's case actively wrong: it declared
both T5Block and OPTDecoderLayer regardless of which language model the
checkpoint actually uses.
- blip_2: T5Block, OPTDecoderLayer
- depth_anything: DPTViTEmbeddings (the backbone is an AutoBackbone, so this
never matched; it now correctly reports the backbone's Dinov2Layer)
- llava_next: LlamaDecoderLayer
- moshi: MimiTransformerLayer
The resulting runtime sets are more accurate than the hardcoded lists were.
Generated modeling files updated with the modular converter, which propagates
the removals to smolvlm, llava_next_video, llava_onevision,
kyutai_speech_to_text and prompt_depth_anything. deepseek_ocr2 and
granite4_vision only shift the position of their own override.
* update modular _no_split_modules
* switch to attributeerror
* fix dac