In Adventurers League, can you change Full Plate armour into Half Plate?

Playing in AL my barbarian has acquired a set of adamantine full plate armour. As this prevents him from his rage benefits, I was wondering if I could simply use it as adamantine half plate, using the half plate stats?

From the Player’s Handbook:

Plate armour: Plate consists of shaped, interlocking metal plates to cover the entire body. A suit of plate includes gauntlets, heavy leather boots, a visored helmet, and thick layers of padding underneath the armor. Buckles and straps distribute the weight over the body.

Half plate: Half plate consists of shaped metal plates that cover most of the wearer’s body. It does not include leg Protection beyond simple greaves that are attached with leather straps.

Could you simply decide not to wear the whole set?