Removed magic constant

Signed-off-by: Aleksandr Samarin <[email protected]>

Author: astralord

vllm/entrypoints/openai/serving_chat.py

@@ -759,7 +759,7 @@ async def chat_completion_stream_generator(
                                 harmony_parser.current_recipient,
                                 token_delta
                             ))
-                        delta_text = "".join(state[2] for state in token_states)
+                        delta_text = "".join(state for _, _ state in token_states)
                     else:
                         delta_text = output.text