Clean up SignIn action

src/Web/WebMVC/Controllers/AccountController.cs

@@ -11,17 +11,9 @@ public class AccountController : Controller
     }
 
     [Authorize(AuthenticationSchemes = OpenIdConnectDefaults.AuthenticationScheme)]
-    public async Task<IActionResult> SignIn(string returnUrl)
+    public IActionResult SignIn(string returnUrl)
     {
-        var user = User as ClaimsPrincipal;
-        var token = await HttpContext.GetTokenAsync("access_token");
-
-        _logger.LogInformation("User {@User} authenticated", user);
-
-        if (token != null)
-        {
-            ViewData["access_token"] = token;
-        }
+        _logger.LogInformation("User {@User} authenticated", User.Identity.Name);
 
         // "Catalog" because UrlHelper doesn't support nameof() for controllers
         // https://github.com/aspnet/Mvc/issues/5853