How to remove locally synced contacts after iOS 7 and Mavericks upgrade Is there a way to remove contacts from an iPhone running iOS 7 that has locally synced contacts and Calendars (On My Mac) now that the Mac has been updated to Mavericks?
Syncing through Sync Services is not possible anymore for contacts as Sync services was removed from Mavericks.

You'll have to manually delete the contacts/calendars/etc. on your iOS device by going to the bottom of the contact and selecting the red Delete contact.