I did see Skin Graft. However, it only really bear some similarity in that it removes some status effects. Otherwise the concept is pretty much completely opposite of the concept I had in mind for Shed Skin.

Skin Graft is designed for maximum offensive output because it resets all your cooldowns, but it strips away your armor. The only statuses it clears are damage-over-time ones. The reason why you use it is for the cooldowns, not the status clearing.

Shed Skin is basically a pure defensive skill, it clears your status effects, but it leaves your armor intact, although it does lower your maximum HP. The status clearing is the only thing Shed Skin does, and the only reason to use it.