Update terraform config for k8s-prow based on current state
Update terraform config for k8s-prow based on current state

node types were switched from n1-* to e2-*, also deleted the n1-standard-4 nodepool which is a duplicate of n1-standard-8 nodepool

dims/test-infra,cblecker/test-infra,dims/test-infra,cjwagner/test-infra,BenTheElder/test-infra,dims/test-infra,kubernetes/test-infra,jessfraz/test-infra,fejta/test-infra,cjwagner/test-infra,michelle192837/test-infra,BenTheElder/test-infra,BenTheElder/test-infra,monopole/test-infra,michelle192837/test-infra,fejta/test-infra,cblecker/test-infra,BenTheElder/test-infra,BenTheElder/test-infra,kubernetes/test-infra,fejta/test-infra,pwittrock/test-infra,michelle192837/test-infra,monopole/test-infra,jessfraz/test-infra,jessfraz/test-infra,cjwagner/test-infra,michelle192837/test-infra,michelle192837/test-infra,cjwagner/test-infra,cjwagner/test-infra,kubernetes/test-infra,fejta/test-infra,monopole/test-infra,cblecker/test-infra,dims/test-infra,cblecker/test-infra,kubernetes/test-infra,dims/test-infra,cblecker/test-infra,michelle192837/test-infra,monopole/test-infra,pwittrock/test-infra,cblecker/test-infra,pwittrock/test-infra,jessfraz/test-infra,monopole/test-infra,dims/test-infra,pwittrock/test-infra,fejta/test-infra,kubernetes/test-infra,cjwagner/test-infra,fejta/test-infra,monopole/test-infra,pwittrock/test-infra,jessfraz/test-infra,kubernetes/test-infra,jessfraz/test-infra,BenTheElder/test-infra