[Chore] Clean up pytorch helper functions in vllm.utils (#26908)

Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: isotr0py <2037008807@qq.com>

vllm/usage/usage_lib.py

@@ -21,7 +21,8 @@ import torch
 import vllm.envs as envs
 from vllm.connections import global_http_connection
 from vllm.logger import init_logger
-from vllm.utils import cuda_device_count_stateless, cuda_get_device_properties
+from vllm.utils import cuda_get_device_properties
+from vllm.utils.torch_utils import cuda_device_count_stateless
 from vllm.version import __version__ as VLLM_VERSION
 
 logger = init_logger(__name__)