I think the wolverine movies and xman movies are different universe. Cuz in the wolverine movies you see him get all the metal stuff put in his body and at the end of the movie he "dies" and the. Gets his memory's removed. But in the xmen movies all you see is him locked up in a box with his memory's already removed. That's just what I think so don't take my word for it
He vowed to never use his claws because mysterio placed a illusion on him making Wolverine believe the mutant kids in the X school where people who attacked the mansion. Messy massacre....
He had them in the trailer.