I highly doubt they removed it. It's been in the game for as long as I can remember and they have no reason for removing it. I'm pretty sure I saw it there the second day after the patch when I went to buy my Silverwing Tabard.
I haven't really played since the new patch, but this question came up on the f2p forums and apparently there is a tab (either on the vendor interface or in your options) to 'show all' instead of having the vendor display only class appropriate gear.