Log4j vulnerability ?

Log4j vulnerability ?

Hi, 
I have 2 question in One please, 
- Can we delete the "Patch" Folder contents after applying the Patch.
- I do not found the log4j library in the "/lib" folder, ( it's only on the Patch folder) is that normal ?

So  , do i have to warry about it and delete the log4j libraries from the "Patch" folder,
apply the recommandation ( https://pitstop.manageengine.com/portal/en/community/topic/log4j-dependency-removals-impact-on-rsa-securid-based-mfa )
and replace the authapi.jar also ?

Regards.