Fix php cs issues

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/InvalidAttachmentType.php

@@ -23,15 +23,12 @@
 
 namespace OCA\Deck;
 
-
 class InvalidAttachmentType extends \Exception {
 
 	/**
 	 * InvalidAttachmentType constructor.
 	 */
 	public function __construct($type) {
-
 		parent::__construct('No matching IAttachmentService implementation found for type ' . $type);
-
 	}
-}
+}