Oh, I see what icons you are referring to now.
Yes, they are gone for me too. But hasn't it been like this for a long time? I can't remember the last time I saw those icons - possibly when the forum theme got changed a few months ago? I definitely remember already noticing a long time ago that they had disappeared, but whether they have re-appeared & gone again since then is another matter.
Looks like yet another bug for staff to sort out, unless the icons' removal was deliberate.