Apply fixes from StyleCI

src/Controllers/RenderableController.php

@@ -4,7 +4,6 @@ namespace Dcat\Admin\Controllers;
 
 use Dcat\Admin\Admin;
 use Dcat\Admin\Support\Helper;
-use Dcat\Admin\Support\RemoteRenderable;
 use Illuminate\Http\Request;
 
 class RenderableController
@@ -34,4 +33,4 @@ class RenderableController
             .Admin::asset()->scriptToHtml()
             .Admin::asset()->styleToHtml();
     }
-}
+}