Revert "Merge pull request #13648 from cblecker/default-goproxy"

config/jobs/kubernetes-security/generated-security-jobs.yaml

@@ -3784,6 +3784,10 @@ presubmits:
         env:
         - name: WHAT
           value: vendor vendor-licenses
+        - name: GOPROXY
+          value: https://proxy.golang.org
+        - name: GOSUMDB
+          value: sum.golang.org
         image: gcr.io/k8s-testimages/kubekins-e2e:v20190726-d319b3f-master
         name: main
         resources: {}

config/jobs/kubernetes/sig-testing/dependencies.yaml

@@ -83,6 +83,10 @@ presubmits:
         # Space separated list of the checks to run
         - name: WHAT
           value: "vendor vendor-licenses"
+        - name: GOPROXY
+          value: https://proxy.golang.org
+        - name: GOSUMDB
+          value: sum.golang.org
     annotations:
       testgrid-create-test-group: 'true'
   - name: pull-kubernetes-godeps

prow/config.yaml

@@ -635,7 +635,3 @@ presets:
       hostPath:
         path: /sys/fs/cgroup
         type: Directory
-# enable GOPROXY by default
-- env:
-  - name: GOPROXY
-    value: "https://proxy.golang.org"