Unlearning profession specializations

I'm not sure if this is the right place to post this, however at the moment you can't seem to unlearn any profession specializations.
I just wondered if we could get any word on if it is intentional since we are emulating 2.0 and this wasnt available until 2.1:

http://wowwiki.wikia.com/wiki/Mooncloth_Tailoring

Or is it just a bug and should i just make another report like these people?

https://www.warmane.com/bugtracker/report/49474
https://www.warmane.com/bugtracker/report/49353
https://www.warmane.com/bugtracker/report/50090

does this mean i should delete my caracter and start over