I've been using Google Voice and receiving GV SMS in the Voice app for years. To make better use of the Assist app on my Moto X, I've configured Google Voice to have messages received in my messaging app (currently Hangouts). Incoming messages appear to be from some other number, and the message text is prefixed with the name of the contact that sent the message. Now that I've got these other numbers assigned to my contacts, is there any way to stop GV from prefixing the message text with their name?