Even if you have plenty of memory for your work load, there are useful performance reasons for having some swap. The TLDR section of this link covers the important bits.

https://chrisdown.name/2018/01/02/in-defence-of-swap.html

Relatively speaking, you do need a lot less swap than you did back in the day, but performance will suffer if you don't have some, and having too much doesn't cost you anything except storage.