Trainz

I want to remove several payware routes that are taking up space on my Hard Drive that I'm just not using and I don't want to deal with having to download them every time I start up Trainz. I want to remove TRS19 Canadian Rocky Mountains - Viktor Lake to Ross Peak & Glacier, Canadian Rocky Mountains - Rogers Pass, TRS19 Canadian Rocky Mountains Beavermouth to Ottertail, and Canadian Rocky Mountains Ottertail to Castle Jct. and their required sessions. Does this require administrator-level access, or can I do this myself?