Check if scheduler refactor impacts our plugins

[aramase]

Ref: kubernetes/kubernetes#105914

[helayoty]

@aramase I've done some investigation here and the main refactor around the following:

• Remove kubeconfig arg from the current plugins and use handler.kubeconfig, which we already did.
• Organize the plugins' structure, which will not affect us as we are not using the same framework anyway.

We should be good to close this issue.