Memory pool fix for upstream change about eagle (#4170)

python/sglang/utils.py

@@ -24,14 +24,10 @@ import requests
 from IPython.display import HTML, display
 from tqdm import tqdm
 
-from sglang.srt.openai_api.protocol import ChatCompletionMessageContentPart
 from sglang.srt.utils import kill_process_tree
 
 logger = logging.getLogger(__name__)
 
-# type of content fields, can be only prompts or with images/videos
-MsgContent = Union[str, List[ChatCompletionMessageContentPart]]
-
 
 def get_exception_traceback():
     etype, value, tb = sys.exc_info()