DTSPO-18085 - non-prod: remove kured

[danielwilsonkainos]

Jira link (if applicable)

https://tools.hmcts.net/jira/browse/DTSPO-18085

Change description

• temp remove kured from non-prod envs in favor of native node os image upgrades

Checklist

• [x] commit messages are meaningful and follow good commit message guidelines
• [x] README and other documentation has been updated / added (if needed)
• [x] tests have been updated / new tests has been added (if needed)
• [ ] Does this PR introduce a breaking change

🤖AEP PR SUMMARY🤖

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• apps/kured/aat/base/kustomization.yaml ⭐️ Removed ././base and kured-values.yaml
• apps/kured/demo/base/kustomization.yaml ⭐️ Removed ././base and kured-values.yaml
• apps/kured/perftest/base/kustomization.yaml ⭐️ Removed ././base and kured-values.yaml
• apps/kured/preview/base/kustomization.yaml ⭐️ Removed ././base and kured-values.yaml
• apps/kured/sbox-intsvc/base/kustomization.yaml ⭐️ Removed ././base and kured-values.yaml