[Core] Simplify setting new_token_ids in CachedRequestData (#26388)

Signed-off-by: Nick Hill <nhill@redhat.com>

vllm/v1/core/sched/scheduler.py

@@ -712,7 +712,6 @@ class Scheduler(SchedulerInterface):
         num_computed_tokens: list[int] = []
         num_output_tokens: list[int] = []
 
-        use_connector = self.connector is not None
         for req in itertools.chain(running_reqs, resumed_reqs):
             req_id = req.request_id
             req_ids.append(req_id)
@@ -729,16 +728,11 @@ class Scheduler(SchedulerInterface):
                     req.num_computed_tokens : req.num_computed_tokens + num_tokens
                 ]
                 new_token_ids.append(token_ids)
-            elif use_connector:
-                # When using a KVConnector, we add a placeholder to avoid index
-                # out of bounds errors. TODO: Remove this once the KVConnector
-                # is updated to handle token IDs properly.
-                new_token_ids.append([])
             new_block_ids.append(
                 req_to_new_blocks[req_id].get_block_ids(allow_none=True)
             )
             num_computed_tokens.append(req.num_computed_tokens)
-            num_output_tokens.append(len(req.output_token_ids))
+            num_output_tokens.append(req.num_output_tokens)
         # Because resumed_reqs is usually empty, it is more efficient to do
         # in-place appending so that we don't need to allocate a new list.
         resumed_from_preemption = [False] * len(running_reqs)