api(application): v2 backport

app/Http/Controllers/Api/Client/ClientApiController.php

@@ -3,7 +3,7 @@
 namespace Pterodactyl\Http\Controllers\Api\Client;
 
 use Webmozart\Assert\Assert;
-use Pterodactyl\Transformers\Api\Client\BaseClientTransformer;
+use Pterodactyl\Transformers\Api\Transformer;
 use Pterodactyl\Http\Controllers\Api\Application\ApplicationApiController;
 
 abstract class ClientApiController extends ApplicationApiController
@@ -11,7 +11,7 @@ abstract class ClientApiController extends ApplicationApiController
     /**
      * Returns only the includes which are valid for the given transformer.
      */
-    protected function getIncludesForTransformer(BaseClientTransformer $transformer, array $merge = []): array
+    protected function getIncludesForTransformer(Transformer $transformer, array $merge = []): array
     {
         $filtered = array_filter($this->parseIncludes(), function ($datum) use ($transformer) {
             return in_array($datum, $transformer->getAvailableIncludes());
@@ -35,22 +35,4 @@ abstract class ClientApiController extends ApplicationApiController
             return trim($item);
         }, explode(',', $includes));
     }
-
-    /**
-     * Return an instance of an application transformer.
-     *
-     * @template T of \Pterodactyl\Transformers\Api\Client\BaseClientTransformer
-     *
-     * @param class-string<T> $abstract
-     *
-     * @return T
-     *
-     * @noinspection PhpDocSignatureInspection
-     */
-    public function getTransformer(string $abstract)
-    {
-        Assert::subclassOf($abstract, BaseClientTransformer::class);
-
-        return $abstract::fromRequest($this->request);
-    }
 }