I know no way to disable links on generated text with a setting in UI. Here is a way to do it using Source Edit.
Disclaimer: you didn't provide any details about the environment you're working with, so my answer is pretty much generic. The sample video is based on Arbortext v6.0, DITA doctype and XSL-FO print engine.
There shouldn't be much differentce for other (FOSI or APP) print engines and other doctypes.
Here is the video: http://communities.ptc.com/videos/2623