How do I remove in ASP.NET core MVC actionmethod

services.AddMvc(opt=>{opt.EnableEndpointRouting=false; });

namespace CoreMVC.Test
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
           services.AddMvc(opt=>{opt.EnableEndpointRouting=false; });
           
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthorization();
            
            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}

namespace CoreMVC.Test.Controllers
{
    
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;

        public HomeController(ILogger<HomeController> logger)
        {
            _logger = logger;
        }

        [Route("")]
        [Route("bilar")]
        [Route("bilar/Index")]
        public IActionResult Index()
        {
            return View();
        }
        [Route("bilar/{state}")]
        public IActionResult Privacy(string state)
        {
            return View();
        }        
    }
}