Remove obsolete elements from `cronjob.xsd`
Remove obsolete elements from `cronjob.xsd`

These elements are no longer (if ever) used.

SoftCreatR/WCF,SoftCreatR/WCF,WoltLab/WCF,SoftCreatR/WCF,Cyperghost/WCF,Cyperghost/WCF,WoltLab/WCF,Cyperghost/WCF,SoftCreatR/WCF,Cyperghost/WCF,WoltLab/WCF,WoltLab/WCF,Cyperghost/WCF