2 lockscreens topic

Hello,
I have a problem with the lockscreen. I used the Motorola cover that take the display on if you open it.
Under settings->security->display lock is nothing selected. Nevertheless sometimes is the lockscreen Attachment 3101736coming. If I selected wipe under display lock then sometimes is lockscreen Attachment 3101736or lockscreen Attachment 3101737coming if I open the cover. How can I remove the lockscreen 1? I have no lockscreen App installed on my moto g 2 gen. Please help me. My phone is not rooted, all stock. 

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