[Misc] Refactor tokenizer interface (#29693)

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

vllm/entrypoints/utils.py

@@ -30,7 +30,7 @@ from vllm.entrypoints.openai.protocol import (
 from vllm.entrypoints.openai.serving_models import LoRAModulePath
 from vllm.logger import init_logger
 from vllm.platforms import current_platform
-from vllm.transformers_utils.tokenizers import MistralTokenizer
+from vllm.tokenizers import MistralTokenizer
 from vllm.utils.argparse_utils import FlexibleArgumentParser
 
 logger = init_logger(__name__)