[Chore] Move tokenizer initialization methods (#29793)

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

vllm/model_executor/models/nano_nemotron_vl.py

@@ -73,12 +73,9 @@ from vllm.multimodal.processing import (
 )
 from vllm.multimodal.profiling import BaseDummyInputsBuilder
 from vllm.sequence import IntermediateTensors
-from vllm.tokenizers import TokenizerLike
+from vllm.tokenizers import TokenizerLike, cached_tokenizer_from_config
 from vllm.transformers_utils.configs.radio import RadioConfig
-from vllm.transformers_utils.tokenizer import (
-    cached_tokenizer_from_config,
-    encode_tokens,
-)
+from vllm.transformers_utils.tokenizer import encode_tokens
 from vllm.utils.tensor_schema import TensorSchema, TensorShape
 
 from .utils import _merge_multimodal_embeddings