perf: Don't fetch full group object in AuthorizedGroupMapper

perf: Don't fetch full group object in AuthorizedGroupMapper

This is very expensive when multiple group backends are enabled as we

don't cache which groups is included in which backend unlike in the User

Manager.

Signed-off-by: Carl Schwan <carlschwan@kde.org>

[skip ci]

Author: CarlSchwan

lib/private/Settings/AuthorizedGroupMapper.php

@@ -11,7 +11,6 @@
 use OCP\DB\Exception;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\IDBConnection;
-use OCP\IGroup;
 use OCP\IGroupManager;
 use OCP\IUser;