Remove sample

src/IdentityServer/samples/Server/Quickstart/Account/AccountController.cs

@@ -341,27 +341,6 @@ private async Task<LoggedOutViewModel> BuildLoggedOutViewModelAsync(string logou
                 LogoutId = logoutId
             };
 
-            if (User?.Identity.IsAuthenticated == true)
-            {
-                var idp = User.FindFirst(JwtClaimTypes.IdentityProvider)?.Value;
-                if (idp != null && idp != Duende.IdentityServer.IdentityServerConstants.LocalIdentityProvider)
-                {
-                    var providerSupportsSignout = await HttpContext.GetSchemeSupportsSignOutAsync(idp);
-                    if (providerSupportsSignout)
-                    {
-                        if (vm.LogoutId == null)
-                        {
-                            // if there's no current logout context, we need to create one
-                            // this captures necessary info from the current logged in user
-                            // before we signout and redirect away to the external IdP for signout
-                            vm.LogoutId = await _interaction.CreateLogoutContextAsync();
-                        }
-
-                        vm.ExternalAuthenticationScheme = idp;
-                    }
-                }
-            }
-
             return vm;
         }
     }