Remove unported HttpAnnounceJob.
This class was based on QHttp which was removed in Qt5. It is possible to port it to QNetworkAccessManager but we have KIO, so we don't really need the old class anymore.
This class was based on QHttp which was removed in Qt5. It is possible to port it to QNetworkAccessManager but we have KIO, so we don't really need the old class anymore.