🧹 remove unused import time in news_analyst.py

- Removed unused `import time` from `tradingagents/agents/analysts/news_analyst.py`
- Verified file syntax with `py_compile`
- Confirmed that the import was successfully removed

Co-authored-by: aguzererler <6199053+aguzererler@users.noreply.github.com>

tradingagents/agents/analysts/news_analyst.py

@@ -1,5 +1,4 @@
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
-import time
 import json
 from tradingagents.agents.utils.agent_utils import get_news, get_global_news
 from tradingagents.dataflows.config import get_config