#11 Part 3/S1: RESTful: Destroy an Item

[sgwalker327]

RESTful: Destroy an Item
This endpoint should:

• destroy the corresponding record (if found) and any associated data
• destroy any invoice if this was the only item on an invoice
• NOT return any JSON body at all, and should return a 204 HTTP status code
• NOT utilize a Serializer (Rails will handle sending a 204 on its own if you just .destroy the object)