While doing some conversions from MiniLang to Groovy, I stumbled across these methods:
These are all in CategoryServices.xml.
I started realizing, that the simple-method loadBestSellingCategory doesn't work right (there are some logical failures in it) and while fixing it,
I searched for places where this is used, but couldn't find any.
I started looking deeper into it and found that all of these methods are never used anywhere in OFBiz, neither are the services which are declared for this methods.
This is why I propose to remove them; they have no real use, since they don't work properly, and also are never used.