fix(eks): remove kubectl layer in cluster-resource

[walkley]

remove unnecessary dependencies to kubectl layer in EKS cluster-resource.

fix #5328

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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[eladb]

Thanks so much for the contribution, but this is shortly (~next week) going to be superseded by a full rewrite of the resource provider. Closing for now.

[walkley]

Thanks so much for the contribution, but this is shortly (~next week) going to be superseded by a full rewrite of the resource provider. Closing for now.

Hi @eladb, I am happy to know that "full rewrite of the resource provider" :), actually this PR was the preceding step for another feature regarding deploying Helm charts to EKS(#3748), the development for this feature(#3748) has been finished in my fork. I am curious about the detail of new resource provider, maybe I could rewrite Helm chart deployment based on the new design.