Norton Anti-Theft is expired after update to Norton Mobile Security

I have just upgraded via the Google Play store my Norton Mobile Security (NMS) and I had installed Norton Anti-Theft (NAT) in the past and now, NAT is saying that the Norton Security license expired.  I also see the all the NAT features within NMS.

 

Have the two programs merged into a single one and if so, should I just un-install NAT and live with NMS without loss of security or features?

 

Thanks for any help provided.