Remove the glued in cover under the main housing of the light.
Note: This takes quite a bit of prying, and is likely to damage the cover. However, there are no active parts of this cover, and it can be reassembled with new glue.
Using a T10H bit, remove the set screw behind the cover you just removed.
Pull the light straight out of the frame
Press in on the clip to remove the light module from the wiring harness.