Use APKPure App
Get Trigger: Lock Screen plugin old version APK for Android
البرنامج المساعد للاستفادة مدير جهاز لتكوين إعدادات قفل الشاشة
A plugin to leverage Device Administrator to configure lock screen settings through Trigger.
A change in Lollipop 5.0 makes this plugin UNABLE to disable the lock screen. 5.1 has fixed this issue and it should work appropriately.