Motorola moto g

My friend recently got a Motorola G13 and he wants to disable the Glance feature (the screen that shows notifications when the phone is locked) without affecting any other settings. We've looked through the settings but can't find a straightforward way to turn it off. Has anyone done this...

I disabled Hangouts on my motorola moto g (1st gen) because I don't use it and since the update to 5.1 something in the google play family reduced the battery life of my phone to 6 hours (google play services used to be >50% of the battery use and it would drop 10-15% in 5 minutes when . . ...