You can remove this widget in the SMS settings inside the App. Open Messaging, Menu (left soft key), settings, Preview Message (uncheck)
In addition, you can also get a different SMS app like GoSMS more customizable and able to place where you like.
Is the iPhone X worth it? Find out why it totally is!
Find out how to track your iPhone's delivery!
Let us help you Give the Gift of AT&T Wireless this holiday season!