I have Google Plus app installed on my HTC One X. In the App drawer it shows icons for Google+ and Messenger. Both these belong to same Google+ app. The Messenger icon opens up Google+ app with message displayed Update to Hangouts. Go to the app and I have Hangouts installed.

The Messenger app icon looks like this:

I tried to uninstall Messenger and it uninstalled the updates of entire Google Plus app. It seems the Messenger icon is created by Google Plus and it only asks user to go to Hangout.

Why is this extra icon present? Is there any way to get rid of it?