not require for decode to add nixl metadata from prefill

Author: rainj-me

vllm/entrypoints/openai/serving_remote_prefill.py

@@ -159,7 +159,6 @@ def _update_remote_prefill_endpoints(self):
 
     async def add_remote_prefill_ep(self, ep: str):
         add_remote_nixl_metadata_url = f"{ep}/remote_nixl_metadata"
-        get_remote_nixl_metadata_url = f"{ep}/nixl_metadata"
         metadata = NixlMetadataRequest(
             metadata=self.nixl_metadata().metadata,
         )
@@ -168,16 +167,6 @@ async def add_remote_prefill_ep(self, ep: str):
                 if resp.status != 200:
                     raise ValueError(f"add local nixl metadata to remote failed with status: {resp.status}")
 
-            async with session.get(get_remote_nixl_metadata_url) as response:
-                if response.status != 200:
-                    raise ValueError(f"get remote nixl metadata failed with status: {response.status}")
-                response_data = await response.json()
-                metadata = NixlMetadataResponse(**response_data)
-                request = NixlMetadataRequest(
-                    metadata=metadata.metadata
-                )
-                await self.remote_nixl_metadata(request)
-
     async def add_remote_prefill_eps(self, request: RemotePrefillEpRequest):
         if not request.endpoints or len(request.endpoints) == 0:
             raise ValueError("Empty URL")