Delete template by name

  Delete template that matches the name.

  If message templates with the same name exists in multiple languages, all those templates will also be deleted.      
  Once deleted the name can not be used for new message templates for 30 days. Use a different name to create future templates during that time period.
  Messages that have been sent with the deleted template, but not yet delivered, will be attempted to be deliver for 30 days from the time of the message.