Delete admin menu ( created from plugin )

Hi, How to delete the admin menu I created using following code?

var menuItem = new SiteMapNode()
{
    
        Title = "Test",
  ControllerName = "Test",
  ActionName = "Test",
  Visible = true,
  RouteValues = new RouteValueDictionary() { { "area", "" } },
};

I have uninstalled and deleted the plugin and this isn't in the

sitemap.conf

file.

still it appears in the menu. How to remove this?

'touch' your global.asax file to force ASP.NET recompile.   If that does not work, delete temporary ASP.NET files