[Chore] Separate out system utilities from vllm.utils (#27201)

Signed-off-by: dongbo910220 <1275604947@qq.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>

tests/utils_/test_utils.py

@@ -19,7 +19,6 @@ from vllm.transformers_utils.detokenizer_utils import convert_ids_list_to_tokens
 from vllm.utils import (
     FlexibleArgumentParser,
     bind_kv_cache,
-    unique_filepath,
 )
 from ..utils import create_new_process_for_each_test, flat_product
 
@@ -466,18 +465,6 @@ def test_load_config_file(tmp_path):
     os.remove(str(config_file_path))
 
 
-def test_unique_filepath():
-    temp_dir = tempfile.mkdtemp()
-    path_fn = lambda i: Path(temp_dir) / f"file_{i}.txt"
-    paths = set()
-    for i in range(10):
-        path = unique_filepath(path_fn)
-        path.write_text("test")
-        paths.add(path)
-    assert len(paths) == 10
-    assert len(list(Path(temp_dir).glob("*.txt"))) == 10
-
-
 def test_flat_product():
     # Check regular itertools.product behavior
     result1 = list(flat_product([1, 2, 3], ["a", "b"]))