D-Link mydlink DCH-S220 User Manual page 16

Section 3 - Usage
8. To delete a rule on iOS, swipe the rule you want to delete to the
left.
Tap the red Delete button to remove the rule.
To delete a rule on Android, swipe the rule you want to delete
to the right.
Tap the trash can icon to remove the rule.
D-Link DCH-S220 User Manual 13