Motorola still has Device contacts along with Google contacts.
I think what the OP is looking for is to lose the feature where email addresses that they have communicated with are added to Contacts automatically. That's done on the GMail (web) side. In the mail account, click the gear icon and choose settings. Locate the "create contacts for auto-complete" section and change it to "I'll add contacts myself".
To the OP, it's not a terrible idea to have your contacts linked to your Google account. If you don't, next time you wipe your phone you'll be in here asking how to get your contacts back, that you thought they would be backed up. If they're not linked to your Google account, they're not backed up unless you have a tool through your carrier to do it (Verizon's "cloud" is one).