[Misc] Separate out utils.counter and move utils.Device to engine (#27588)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/engine/protocol.py

@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
+import enum
 from abc import ABC, abstractmethod
 from collections.abc import AsyncGenerator, Iterable, Mapping
 from typing import Any
@@ -15,13 +16,17 @@ from vllm.pooling_params import PoolingParams
 from vllm.sampling_params import SamplingParams
 from vllm.tasks import SupportedTask
 from vllm.transformers_utils.tokenizer import AnyTokenizer
-from vllm.utils import Device
 from vllm.v1.engine import EngineCoreRequest
 from vllm.v1.engine.processor import Processor
 
 logger = init_logger(__name__)
 
 
+class Device(enum.Enum):
+    GPU = enum.auto()
+    CPU = enum.auto()
+
+
 class EngineClient(ABC):
     """Protocol class for Clients to Engine"""