dedup _get_model_external_data_paths

[xieofxie]

System Info

windows

Who can help?

No response

Information

• The official example scripts
• My own modified scripts

Tasks

• An officially supported task in the examples folder (such as GLUE/SQuAD, ...)
• My own task or dataset (give details below)

Reproduction (minimal, reproducible, runnable)

if not, save_pretrained will copy multiple times https://github.com/huggingface/optimum/blob/main/optimum/onnxruntime/modeling_diffusion.py#L198

Expected behavior

only copy once