The double sided nut in the tool bag is for removing the axles. When I did mine, It was agrivating at first because I pulled the tensioner and everything. Only after I had pulled it did I realize how easy it was. The next time I pulled it, it was sinch and didnt take mor than 10 min. total. Took longer to put it on the stand than it did to pull the wheel.
Just loosen the locking bolt on the bottom and then unscrew the axle. It is also easier on the install if you pull the rear caliper and then put it back on after the wheel is back on.