Instead, set the default level of all logs to QtWarningMsg.
The call to setFilterRules overrides the user preferences in qtlogging.ini.
Change-Id: Id5f6cd550d14ff7f45ae04c5d3110e0bafb0f072
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: hjk <hjk@qt.io>