Sure, there are lots of recordings of operas-with-speaking that omitted the spoken portions. Magic Flute, for sure, but operettas as well. This pretty much stopped happening around the mid-1960s, I think.

Certainly it was the rule in the 78 RPM era, though there were interesting exceptions -- most notably a 1907 Fledermaus, which includes more dialogue than some recent recordings! I find that amazing.