Auto merge of #114204 - GuillaumeGomez:remove-unneeded-clone-calls, r=notriddle

[rustdoc] Remove unneeded `clone()` calls for `derive_id`

I realized we were cloning values before passing them to `derive_id` where they are cloned again, which isn't great. Since they'll be cloned anyway, let's allow to pass both by reference and by value.

r? `@notriddle`

Author: bors