If you want to edit a forms name, description, type or delete a form you can do so by going to Settings > Work Settings > Forms.
To edit a form name or description or delete a form completely you can select the menu from within the forms list section
or by going into a form > Clicking the menu icon
Click "Edit form" which will bring up a pop up where you can edit the name, type or description of the form. once done, you can click update.
If you would like to delete your form, press the "delete form" option in the menu, which will ask you if you are sure you want to delete. If you do want to move forward, click "Yes, delete form".