Through the action menu it is possible to delete several interfaces at the same time. Follow these steps:
1. Select the interfaces you want to delete by clicking on the checkbox ;
Interfaces - Selected interfaces
2. Click on the Actions Menu  and select the option “Remove”;
Interfaces - Actions menu - Remove
3. A screen will appear asking if you want to delete the selected device:
Interfaces – Remove interfaces
If you want to cancel, click the  button. To complete the deletion click on the [ ] button.
The interface has been successfully deleted.