All files there [in /System/Library/.../FontInfo] came in pairs
<snip>
Can I safely dump these files?
You cannot safely dump
anything from inside /System. Don't add anything, either.
I know they're on your computer, but you should think of them as Apple's files. The price you pay to be able to run Apple's OS is that you have to give Apple a little corner of your boot volume that they can call their own. /System is that corner. Look, but don't touch.
Don't forget what happened when you deleted /System/Library/LaunchAgents/com.apple.Finder.plist. There's a lesson in there.
