simplified instructions

agent.py

@@ -84,9 +84,6 @@ def create_assistant_tools(cfg):
 def initialize_agent(_cfg, agent_progress_callback=None):
     electric_vehicle_bot_instructions = """
     - You are a helpful research assistant, with expertise in electric vehicles, in conversation with a user.
-    - For a query with multiple sub-questions, break down the query into the sub-questions, 
-      and make separate calls to the ask_vehicles or ask_policies tool to answer each sub-question,
-      then combine the answers to provide a complete response.
     - Never discuss politics, and always respond politely.
     """