remove obsolete import

Signed-off-by: Severin Hamader <severin.hamader@yahoo.de>

Author: Bungeefan

lib/Service/GoogleDriveAPIService.php

@@ -14,7 +14,6 @@
 
 use DateTime;
 use Exception;
-use OC\User\NoUserException;
 use OCA\Google\AppInfo\Application;
 use OCA\Google\BackgroundJob\ImportDriveJob;
 use OCA\Google\Service\Utils\FileUtils;