if you are short on space, then you should uninstall, but for the sake of security, you can leave the stuff on there just turn it off.
Your reasoning is dead wrong. In this case security means you know what you're running when you need it, how you're running it and how to validate/monitor it. IF YOU DONT NEED IT, REMOVE IT.
Tigger: by now this thread is considered OT as far as security is concerned. Some people tend to give the wrong advise, other people repeat others, and so I'm closing this thread. If you still can't figure out how to uninstall rpm's, please open up a new thread in /Linux/General or /Linux/Software.