Validate Font PingFang

I am going through and "Validating" my fonts since I've been downloading some lately.

However, there is a "Ping Fang" font which gets the red circle warning to not use it. The font came with the computer -- I did not download it. It won't allow me to disable it or to delete it. Seems to me that this is some kind of virus waiting to happen. How do I get rid of it?