Do not show instrument numbers in parts?

I’ve turned on Staff labels on first system for my parts for players that hold multiple instruments (because I think it’s less clutter than showing the instrument change on top of the stave in each flow). However, with this turned on I then get numbers for the instruments (e.g. in the part my staff label is ‘Alto Saxophone 1’ whereas I want it just to say ‘Alto Saxophone’). How do I avoid these numbers in my parts?

I don’t think there’s any way to exclude the instrument number from the staff label in a part layout if you do have multiple identical instruments in the project.