NetApp
7-mode/HA pair/V-Series : Configuration : Network : Interfaces : Configuring interfaces : Deleting a network interface
Deleting a network interface
You can select and delete a network interface. You can only delete a virtual interface such as a vif or a VLAN.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > Network > Interfaces.
3.
Select an interface and click Delete.
4.
Click Delete.