Removed CP issue.

Related to https://scrutinizer-ci.com/g/phpDocumentor/phpDocumentor2/indices/105267/duplications/side-by-side?lines=29&locations[0][line]=91&locations[0][path]=src%2FphpDocumentor%2FPlugin%2FCore%2FTransformer%2FWriter%2FFileIo.php&locations[1][line]=129&locations[1][path]=src%2FphpDocumentor%2FTransformer%2FTemplate%2FCollection.php