A photo of the hinge might be in order. If the hinge is metal, you may be able to use a high watt soldering iron and really heat up the hinge and then just pull it out when the glue has softened. You would have to work fast though and depending on how the hinge was set, you may be fighting a cross pinned hinge which isn't going to come out what ever you do.

One more question though, Is this a strip aileron with torque rods? If so, you need to really consider leaving the hinges alone and covering around them. Getting the hinges out isn't a problem, but getting the torque rod out can be a major problem. I removed the hinges on my trainer, which had a torque rod setup. I drilled a 1/16" or finner hole next to the 90 bend and used a 4/0 jewelers saw blade and cut the torque rod in half. Make sure you cut the rod cross the span, not the cross the cord, otherwise you will not get it out through the hinge. I did this because I wanted a servo on each aileron.

Don