Convert another controller test to feature test

Decouple from implementation, test closer to HTTP...

tests/integration/api/Controller/CreateTokenControllerTest.php

@@ -1,50 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * (c) Toby Zerner <toby.zerner@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Flarum\Tests\integration\api\Controller;
-
-use Flarum\Api\Controller\CreateTokenController;
-use Flarum\Http\AccessToken;
-
-class CreateTokenControllerTest extends ApiControllerTestCase
-{
-    protected $controller = CreateTokenController::class;
-
-    public function setUp()
-    {
-        parent::setUp();
-
-        $this->prepareDatabase([
-            'users' => [
-                $this->normalUser(),
-            ],
-        ]);
-    }
-
-    /**
-     * @test
-     */
-    public function user_generates_token()
-    {
-        $response = $this->call($this->controller, null, [], [
-            'identification' => 'normal',
-            'password' => 'too-obscure'
-        ]);
-
-        $data = json_decode($response->getBody()->getContents(), true);
-
-        $this->assertEquals(2, $data['userId']);
-
-        $token = $data['token'];
-
-        $this->assertEquals(2, AccessToken::findOrFail($token)->user_id);
-    }
-}