How to remove sold items from latest products?

How can I remove the sold items off the latest products section?
I have a separate category for sold items specifically, but I do not want them to show up on the latest products ( front page )

Thank you.

LiteCart does either. So for one component to do it, but the others not you would need to modify where there should be an anomaly.

https://github.com/litecart/litecart/blob/2.5.1/public_html/includes/functions/func_catalog.inc.php#L45-L192
https://github.com/litecart/litecart/blob/2.5.1/public_html/includes/boxes/box_latest_products.inc.php#L9-L12

A quick way to solve it is to modify the lc_products.date_created straight in phpMyAdmin so they don't show among the latest.

Another idea to solve it could be to sort products with quantities less than 0 last.

@ Tim, so do I replace both of my files, with those two you posted above?
Sorry I'm a bit confused.

They are not for replacing. They are a reference of what files you need to modify to implement such a feature.