I just want to get rid of a bit of the sugar before I add them to my salad, but I don't want them to taste bland.
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If the sugar is still crystallized and grainy on the outside, you can rub some of the sugar coating off of them. If the sugar is melted, forming a shell around the pecans it will be harder to fix. If you rinse them, you could easily end up with sad, soggy pecans unless you them dry them in a low oven after rinsing.
jen's on track. i would lay a small terrycloth towel in a bowl, add your nuts, fold over the towel ends like a hobo's satchel, and massage the nuts through the towel, which will rub off some of the coating. I do this all the time with canned VA peanuts that are too salty.
I'd reduce quantities and blend with raw/uncandied pecans, maybe 50-50. Chop up the candied ones smaller so you don't get a big mouthful.