How to delete Fingerprints in Samsung Galaxy S6 Edge+(SM-G928G)?
a). From the Home screen, tap Apps.
b). Tap Settings.
c). On the Settings screen, tap Lock screen and security.
d). Tap Fingerprints.
e). Scan a registered fingerprint, or tap Backup password and enter the backup password.
f). Tap EDIT.
g). Select the Fingerprints you wish to delete.
h). Tap REMOVE.
i). Tap REMOVE. If all fingerprints are deregistered, the screen lock type will be automatically changed to Swipe.