Remove unsed trait

[wangzhen11aaa]

Remove unsed trait.
Will we add this Clone trait without any cost？

[skyzh]

Indeed, Copy requires Clone, so this change indeed takes no effect :)

https://doc.rust-lang.org/src/core/marker.rs.html#383-385

Adding Clone trait won't add significant cost, from my perspective.

[wangzhen11aaa]

Indeed, Copy requires Clone, so this change indeed takes no effect :)

https://doc.rust-lang.org/src/core/marker.rs.html#383-385

Adding Clone trait won't add significant cost, from my perspective.

Ok, I'll see. I think Clone coupled with Copy is something like thought inertia. :D

[wangzhen11aaa]

Indeed, Copy requires Clone, so this change indeed takes no effect :)
https://doc.rust-lang.org/src/core/marker.rs.html#383-385
Adding Clone trait won't add significant cost, from my perspective.

Ok, I'll see. I think Clone coupled with Copy is something like thought inertia. :D

#[derive(Copy, Clone, Debug, PartialEq)]
What's more, for Clone is the supertrait of Copy, then It is a good inertia, maybe.

[skyzh]

Yes, I think I was impacted by the derive inertia. Sounds reasonable not to + Clone here.

[skyzh]

Oops, the commit title on main branch looks weird. I’ll do a force push tomorrow to fix it.