Remove obsolete WCFACP::initPackage()
Remove obsolete WCFACP::initPackage()

Ever since WoltLab Suite Core got its own frontend the PACKAGE_ID constant
should be defined at all times, making this method obsolete.

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