remove all rubies to avoid issues like #8045
Created by: bbodenmiller
Instruct user to remove all system rubies since it seems to cause problems like seen in #8045. After removing system rubies user can then manually install ruby.
Fixes #8045.
Created by: bbodenmiller
Instruct user to remove all system rubies since it seems to cause problems like seen in #8045. After removing system rubies user can then manually install ruby.
Fixes #8045.