sys/syz-sysgen: remove dead code
sys/syz-sysgen: remove dead code

dotweiba/syzkaller,zoulasc/syzkaller,google/syzkaller,zoulasc/syzkaller,xairy/syzkaller,dotweiba/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,xairy/syzkaller,google/syzkaller,zoulasc/syzkaller,xairy/syzkaller,xairy/syzkaller,dotweiba/syzkaller,xairy/syzkaller,google/syzkaller,google/syzkaller,google/syzkaller,google/syzkaller,dotweiba/syzkaller,zoulasc/syzkaller