fix setFileKey() call in updateKeyfile hook

apps/files_encryption/hooks/hooks.php

@@ -65,7 +65,7 @@ class Hooks {
 	public static function updateKeyfile( $params ) {
 		if (Crypt::mode(\OCP\User::getUser()) == 'client')
 			if (isset($params['properties']['key'])) {
-				Keymanager::setFileKey(\OCP\User::getUser(), $params['path'], $params['properties']['key']);
+				Keymanager::setFileKey($params['path'], $params['properties']['key']);
 			} else {
 				error_log("Client side encryption is enabled but the client doesn't provide a encryption key for the file!");
 		}