Dan Dvorscak
Ansys Employee

That particular file is specific to the SPISim utility. If you are not using SPISim at all, it can be safely deleted without impacting the rest of the Ansys Electronics suite. 

Though it it helps, according to the Ansys support site for Log4j vulnerabilities that file does not use any of the affected classes that are susceptible to the vulnerability. Also note that this issue has been completely resolved in the 2023R1 release. 

Apache Log4j Vulnerability - Software Security Updates (ansys.com)