[V0 Deprecation] Remove V0 sampling metadata (#25345)

Signed-off-by: Woosuk Kwon <woosuk@thinkingmachines.ai>

vllm/model_executor/layers/logits_processor.py

@@ -10,7 +10,6 @@ from vllm.distributed import (tensor_model_parallel_all_gather,
 from vllm.model_executor.custom_op import CustomOp
 from vllm.model_executor.layers.vocab_parallel_embedding import (
     VocabParallelEmbedding)
-from vllm.model_executor.sampling_metadata import SamplingMetadata
 from vllm.platforms import current_platform
 
 
@@ -50,7 +49,6 @@ class LogitsProcessor(CustomOp):
         self,
         lm_head: VocabParallelEmbedding,
         hidden_states: torch.Tensor,
-        sampling_metadata: Optional[SamplingMetadata] = None,
         embedding_bias: Optional[torch.Tensor] = None,
     ) -> Optional[torch.Tensor]:
         if self.logits_as_input: