[Misc] Simplify PoolerOutput and move to v1/outputs (#25629)

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

vllm/sequence.py

@@ -11,7 +11,6 @@ if TYPE_CHECKING:
     from vllm.v1.worker.kv_connector_model_runner_mixin import (
         KVConnectorOutput)
 else:
-    LoRARequest = Any
     KVConnectorOutput = Any
 
 VLLM_TOKEN_ID_ARRAY_TYPE = "l"
@@ -48,29 +47,6 @@ class RequestMetrics:
     model_execute_time: Optional[float] = None
 
 
-class PoolingSequenceGroupOutput(
-        msgspec.Struct,
-        omit_defaults=True,  # type: ignore[call-arg]
-        array_like=True,  # type: ignore[call-arg]
-):
-    """The model output associated with a pooling sequence group."""
-    # Annotated as Any to be compatible with msgspec
-    # The actual type is in SequenceGroup.pooled_data
-    data: Any
-
-    def get_data_nbytes(self) -> int:
-        data: torch.Tensor = self.data
-        return data.nbytes
-
-    def __repr__(self) -> str:
-        return f"PoolingSequenceGroupOutput(data={self.data}"
-
-    def __eq__(self, other: object) -> bool:
-        if not isinstance(other, PoolingSequenceGroupOutput):
-            raise NotImplementedError()
-        return self.data == other.data
-
-
 # cannot use msgspec.Struct here because Dynamo does not support it
 @dataclass
 class IntermediateTensors:
@@ -119,30 +95,6 @@ class IntermediateTensors:
         return f"IntermediateTensors(tensors={self.tensors})"
 
 
-class PoolerOutput(
-        msgspec.Struct,
-        omit_defaults=True,  # type: ignore[call-arg]
-        array_like=True):  # type: ignore[call-arg]
-    """The output from a pooling operation in the pooling model."""
-    outputs: list[PoolingSequenceGroupOutput]
-
-    def get_data_nbytes(self) -> int:
-        return sum(o.get_data_nbytes() for o in self.outputs)
-
-    def __getitem__(self, idx: int) -> PoolingSequenceGroupOutput:
-        return self.outputs[idx]
-
-    def __setitem__(self, idx: int, value: PoolingSequenceGroupOutput):
-        self.outputs[idx] = value
-
-    def __len__(self):
-        return len(self.outputs)
-
-    def __eq__(self, other: object):
-        return isinstance(other,
-                          self.__class__) and self.outputs == other.outputs
-
-
 class ExecuteModelRequest(
         msgspec.Struct,
         array_like=True,  # type: ignore[call-arg]