Remove v3 APIs

Fixed in

EPiServer.ContentDeliveryApi 2.17.0

Created

Jul 14, 2020

Updated

Jan 13, 2021

State

Closed, Acceptance tests pass


Description

Since we have backported the features from v3 to v2 the only remaining difference is a little difference in json format. However since we use options to control the behavior for other things we could add an option to control the json format as well and remove v3.
This would make code simpler, QA life simpler.