Actually, last time I checked all destroyers from the Imperial fleet were scrapped in the 90's when they were retired. I can tell you for a fact they are not at the Bushrer's port as you can look at the port using Google Earth and there are no vessels of that kind anywhere near it. Nor at Bandar Abbas. In fact these vessels have never been seen at ANY Iranian ports since Google Earth became available and believe me, these ports have been closely studied.
It's possible the vessels are in a covered dry dock but I think it's more likely they were just scrapped.