In your ~./config/kscreenlockerrc there’s a section for [Daemon] where LockOnStart=true. Switch that to LockOnStart=false and reboot and it should not show lockscreen on login anymore.
In your ~./config/kscreenlockerrc there’s a section for [Daemon] where LockOnStart=true. Switch that to LockOnStart=false and reboot and it should not show lockscreen on login anymore.