
The option was disabled by default in Havana with commitcfdc59860e
and it's usage was removed in Newton with commit5a64f57824
, so remove the option since it's not longer used. A release note is added to note the removal of the option which was broken and confusing anyway. Part of blueprint remove-legacy-v2-api-code Change-Id: I23a390e5fa269c6a4a741bd414153764ea37e79c