cleaning raw content for eck docs

Author: eedugon

raw-migrated-files/cloud-on-k8s/cloud-on-k8s/k8s-installing-eck.md

@@ -15,8 +15,6 @@ toc:
     children:
       - file: cloud-on-k8s/cloud-on-k8s/k8s-custom-http-certificate.md
       - file: cloud-on-k8s/cloud-on-k8s/k8s-es-secure-settings.md
-      - file: cloud-on-k8s/cloud-on-k8s/k8s-installing-eck.md
-      - file: cloud-on-k8s/cloud-on-k8s/k8s-orchestration.md
       - file: cloud-on-k8s/cloud-on-k8s/k8s-securing-stack.md
       - file: cloud-on-k8s/cloud-on-k8s/k8s-tls-certificates.md
       - file: cloud-on-k8s/cloud-on-k8s/k8s-upgrading-stack.md