Remove invalid test

EKS no longer allows CoreDNS to run when only a control plane exists;
there are no schedulable nodes in this scenario, since users do not have
access to control plane nodes.

Signed-off-by: Nolan Brubaker <[email protected]>

Author: nrb

test/e2e/data/e2e_eks_conf.yaml

@@ -127,8 +127,6 @@ variables:
   EXP_EKS_IAM: "false"
   EXP_EKS_ADD_ROLES: "false"
   VPC_ADDON_VERSION: "v1.18.1-eksbuild.3"
-  COREDNS_ADDON_VERSION: "v1.11.1-eksbuild.8"
-  COREDNS_ADDON_CONFIGURATION: '{"replicaCount":3}'
   KUBE_PROXY_ADDON_VERSION: "v1.30.0-eksbuild.3"
   CONFORMANCE_CI_ARTIFACTS_KUBERNETES_VERSION: "1.30.2"
   IP_FAMILY: "IPv4"