This was easy to do before the upgrade, now it doesn't do this. It doesn't make sense to have to do a factory reset! It's less intuitive!
1 Answer
I believe you'll need to remove the associated Google account on your device. Go to Android's SETTINGS > PERSONAL > ACCOUNTS & SYNC. Tap on the account you want to remove. Next, tap the overflow/menu icon and choose REMOVE ACCOUNT
http://support.google.com/android/bin/answer.py?hl=en&answer=1663649