Unroot and return to stock?

[Prop_r]

I just rooted it when I first got it a week ago not even thinking of looking to make sure I can unroot it. I came from the nexus world and that's always been a given. Is there a way to unroot it? Haven't seen anything on here or on XDA. Just want to make sure I still get the newest android os which was the main reason I got the Google play edition over the regular one.

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