i'm just going to chalk this up to an eerie coincidence, but it would also have made a pretty excellent reference if it was deliberate. we'll probably never know for sure, though.
listen to the melody in Hollow Hills as he sings, "suicide" at about 2:44 then listen to the melody in Old Age.
very similar melodies. the intervals are basically the same but the phrasing is a little different.
Bauhaus - Hollow Hills, 1981
Nirvana - Old Age (demo version), circa 1991