A few days ago I set up a CardDAV sync of my (iCloud/On My Mac -- in my case, a MBP) Contacts with Gmail. I then decided I didn't actually want to do this, and (I thought) deleted the sync. In the days since, however, I will periodically see "Sync Alerts," telling me that syncing with Google Contacts will change more than 25% of my contacts or groups on this computer. In System Preferences --> Mail, Contacts & Calendars, it looks like the only sync set up is iCloud. What can I do to stop receiving these sync alerts? Thanks very much.