[Misc] Remove misleading log

[wangxiyuan]

When loading a local model like:

from vllm import LLM
llm = LLM(model="./opt-125m")

The log will show some info in error level, but actually it doesn't raises any error.

ERROR 02-14 07:06:48 config.py:102] Error retrieving file list: Repo id must use alphanumeric chars or '-', '_', '.', '--' and '..' are forbidden, '-' and '.' cannot start or end the name, max length is 96: './opt-125m'., retrying 1 of 2
ERROR 02-14 07:06:50 config.py:100] Error retrieving file list: Repo id must use alphanumeric chars or '-', '_', '.', '--' and '..' are forbidden, '-' and '.' cannot start or end the name, max length is 96: './opt-125m'.

This PR remove this misleading log.

Related to: #13107

[github-actions]

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[wangxiyuan]

@maxdebayser @khluu Is this change fine? Thanks.

[maxdebayser]

@wangxiyuan , since this is a local path, I think that vllm shouldn't even enter this retry loop, it should search for the files locally first. Let me try to reproduce this behavior here.

[maxdebayser]

@wangxiyuan , I've opened PR #13292 to fix this behavior. Thanks for reporting the problem!

[wangxiyuan]

see #13292