how do I delete other animtion sets completly so I can export to .x properly

How do I delete other animation sets completly so I can export to .x properly?
I have a character for a game that needs to be exported to .x but the problem is it keeps defaulting to the other blank animation sets. I want to delete them so i just have one called generic with all the animation on it, and so the exporter can work properly and have no choice but to use the right animation set- I want to delete the other datablocks if that’s what they are called.

Sorry if that’s not clear, hope some one can help.

bah, searched again
that seems to slove my problem. didn’t search well enought the first time