impr: Remove useless code

Author: simcariou

agentic-backend/agentic_backend/common/kf_workspace_client.py

@@ -90,7 +90,6 @@ def _path_user_upload() -> str:
 
     @staticmethod
     def _path_agent_config_download(agent_id: str, key: str) -> str:
-        logical_key = (key or "").strip().replace("\\", "/").split("/")[-1]
         return f"/storage/agent-config/{agent_id}/{logical_key}"
 
     @staticmethod