How to get Jenkins to stop showing deleted modules?

[Glen Mazza]

Hi, Apache Roller today only has two modules -- project and app: 
https://builds.apache.org/job/Roller/lastBuild/ .  The other six listed 
there under "Module Builds" as "(didn't run)" were removed from the 
application about a month ago and aren't ever coming back. How can I get 
Jenkins to stop showing those dead modules from the above page?  Or is 
the only way to do that would be to delete the Roller project from 
Jenkins entirely and create a new Roller one?

Thanks,
Glen