Update to Laravel 5.5 (#814)

app/Http/Controllers/Auth/LoginController.php

@@ -107,6 +107,8 @@ class LoginController extends Controller
      *
      * @param \Illuminate\Http\Request $request
      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Http\Response
+     *
+     * @throws \Illuminate\Validation\ValidationException
      */
     public function login(Request $request)
     {
@@ -115,8 +117,7 @@ class LoginController extends Controller
 
         if ($this->hasTooManyLoginAttempts($request)) {
             $this->fireLockoutEvent($request);
-
-            return $this->sendLockoutResponse($request);
+            $this->sendLockoutResponse($request);
         }
 
         try {