fix: Remove redundant initialization of create_workflow

[51bitquant]

result = run_hedge_fund(
        tickers=tickers,
        start_date=start_date,
        end_date=end_date,
        portfolio=portfolio,
        show_reasoning=args.show_reasoning,
        selected_analysts=selected_analysts,
        model_name=model_choice,
        model_provider=model_provider,
    )

this function will create the workflow again

 workflow = create_workflow(selected_analysts)
            agent = workflow.compile()

while you have initialized the workflow above

# Create the workflow with selected analysts
    workflow = create_workflow(selected_analysts)
    app = workflow.compile()

    if args.show_agent_graph:
        file_path = ""
        if selected_analysts is not None:
            for selected_analyst in selected_analysts:
                file_path += selected_analyst + "_"
            file_path += "graph.png"
        save_graph_as_png(app, file_path)