Deleting a Form
Find the form (or forms) you wish to delete in the list and check the box next to it.
Choose “Delete” from the dropdown menu, and click “Go”.
Note: The selected item(s) will be removed from the system. This action cannot be undone!
You may also delete the item from the form edit screen:
From the forms manager, find the form you wish to delete and click it.
Click the “Delete” link on the right side of the screen. You will be prompted to confirm this action.
Source: Adapted from LiveWhale Support