Remove hint

Author: fogelito

src/Database/Database.php

@@ -3863,9 +3863,6 @@ public function updateDocument(string $collection, string $id, Document $documen
 
         $document = $this->withTransaction(function () use ($collection, $id, $document) {
             $time = DateTime::now();
-            /**
-             * @var $old Document
-             */
             $old = Authorization::skip(fn () => $this->silent(
                 fn () =>
                 $this->getDocument($collection->getId(), $id, forUpdate: true)