Remove dependencies

cf. WoltLab/WCF@320f4a6db2853c664aa1c7873f4c52466bc6d721
WoltLab/WCF@fc69b61d9eeaba3cfd29ae68d2b058319a1207cc
WoltLab/WCF@d45eaff6d35ad3f2b64c28cbbd30ba8e49cf8fa9