erase duplicate code

app.py

@@ -147,55 +147,6 @@ def create_agent():
     
     logger.info("Starting agent creation process...")
     
-    # Step 1: Set up database connection
-    logger.info("Setting up database connection...")
-    db, db_error = setup_database_connection()
-    if not db:
-        error_msg = f"Failed to connect to database: {db_error}"
-        logger.error(error_msg)
-    else:
-        logger.info("Database connection successful")
-    
-    # Step 2: Initialize LLM
-    logger.info("Initializing language model...")
-    llm, llm_error = initialize_llm()
-    if not llm:
-        error_msg = f"Failed to initialize language model: {llm_error}"
-        logger.error(error_msg)
-    else:
-        logger.info("Language model initialized successfully")
-    
-    # Check if both components are available
-    if not db or not llm:
-        error_msg = f"Cannot create agent. {db_error if not db else ''} {llm_error if not llm else ''}"
-        logger.error(error_msg)
-        return None, error_msg
-    
-    try:
-        logger.info("Creating SQL agent...")
-        agent = create_sql_agent(
-            llm=llm,
-            db=db,
-            agent_type=AgentType.OPENAI_FUNCTIONS,
-            verbose=True
-        )
-        
-        # Test the agent with a simple query
-        try:
-            logger.info("Testing agent with a simple query...")
-            test_result = agent.invoke({"input": "What tables are available?"})
-            logger.info(f"Agent test response: {str(test_result)[:200]}...")  # Log first 200 chars
-        except Exception as test_error:
-            logger.warning(f"Agent test query failed (this might be expected): {str(test_error)}")
-        
-        logger.info("SQL agent created and tested successfully")
-        return agent, ""
-        
-    except Exception as e:
-        error_msg = f"Error creating SQL agent: {str(e)}"
-        logger.error(error_msg, exc_info=True)  # Include full stack trace
-        return None, error_msg
-
 def create_agent(llm, db_connection):
     """Create and return a SQL database agent."""
     if not llm: