You will also be able to delete a form that is Awaiting Remote Signing. To do this, you will first need to Stop Remote Signing from the WebForm Summary. This will change the status to Rejected, from which you can delete the form.
Deleting as a User
If your user account has Form Capture Client User and not Form Capture Manager set in their User Permissions, you will only be able to delete forms that have you set as the Owner.
You will only be able to delete Live forms using the … > Delete button from the WebForm List.