Why not just make uninstall ? If they don't have an uninstall just delete the files. If you installed as root usually under /usr/bin /usr/share etc.., if not then they usually end up in /usr/local/bin /usr/local/share/ etc... Don't delete the directories I mentioned though.
Then delete the source directories. It ain't windows you know
Or take the opportunity to try out another distro, If you like RedHat you could try Fedora.