fixed flickr code width/height calculation

Author: oscarotero

src/Adapters/Flickr.php

@@ -42,6 +42,8 @@ public function getWidth()
         if (!parent::getCode()) {
             return 640;
         }
+
+        return parent::getWidth();
     }
 
     /**
@@ -52,6 +54,8 @@ public function getHeight()
         if (!parent::getCode()) {
             return 425;
         }
+
+        return parent::getHeight();
     }
 
     /**