add password update custom response

Author: NargesHajiani

src/Http/Controllers/PasswordController.php

@@ -2,7 +2,6 @@
 
 namespace Laravel\Fortify\Http\Controllers;
 
-use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Routing\Controller;
 use Laravel\Fortify\Contracts\PasswordUpdateResponse;