unregister_generic_syscall
status_t unregister_generic_syscall(const char *subsystem, uint32 version);
unregister_generic_syscall(RANDOM_SYSCALLS, 1);
unregister_generic_syscall(LAUNCH_SPEEDUP_SYSCALLS, 1);
unregister_generic_syscall(CACHE_LOG_SYSCALLS, 1);
unregister_generic_syscall(ARP_SYSCALLS, 1);
unregister_generic_syscall(NET_NOTIFICATIONS_SYSCALLS, 1);