How to get rid of remnants of a user profile in /var/folders?
&quot;I'm not sure what to do about this&quot;
My overwhelming instinct is to leave it alone. There's no personal data there, and it's not taking up significant space. The OS will probably tidy it up at some point.
There's a very very tiny possibility that the OS may actually need these files for something and get confused if they're not there.
Yes, you probably could find a way to delete the files manually; -- or you could do something useful with your time instead! IMO, the less maintenance I have to do, the better.