쿠키 삭제 추가

Reviewed-on: http://192.168.10.243:3000/owrainfo/confirms/pulls/36

app/Controllers/Login.php

@@ -18,6 +18,8 @@ class Login extends BaseController
         $user_id = get_cookie('save_id');
         if (!empty($user_id)) {
             $this->data['user_id'] = $user_id;
+        } else {
+            delete_cookie('save_id');
         }
 
         return view('pages/login', $this->data);
@@ -157,7 +159,9 @@ class Login extends BaseController
     public function out()
     {
         $this->session->destroy();
-        return redirect()->to('/login');
+        return redirect()
+            ->to('/login')
+            ->deleteCookie('save_id');
     }