common : update download code (#19573)
* common : remove legacy .json to .etag migration code
Signed-off-by: Adrien Gallouët <angt@huggingface.co>
* common : simplify common_download_file_single_online
This commit also force a redownload if the file exists
but has no .etag file.
Signed-off-by: Adrien Gallouët <angt@huggingface.co>
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Signed-off-by: Adrien Gallouët <angt@huggingface.co>
