Follow-up to the config.json auto_map removal. These files are no longer
referenced and were the source of the silent random-init bug on
transformers 5.x. See parent commit for details.
Fix: remove auto_map so AutoModelForCausalLM uses stock Mistral
The vendored modeling_mistral.py was silently returning a randomly-
initialized model on transformers 5.0-5.12.x (missing _is_hf_initialized
guard in _init_weights) and producing wrong logits on >=5.13 (deprecated
attention-mask and cache APIs). The shipped weights are stock Mistral
(model_type=mistral, sliding_window=null) and load bit-equal via stock
MistralForCausalLM. Removing auto_map routes AutoModel* to the upstream
implementation, which HF maintains, and eliminates both failure modes.
