Jeffrey Regan 5a9b06b717 **What this PR does / why we need it**: ... Remove kubectl's dependence on pkg/api/helper, as part of broader effort to isolate kubectl from the rest of k8s. In this case, the code becomes private to kubectl; nobody else uses it. **Which issue this PR fixes** Part of a series of PRs to address kubernetes/community#598 **Special notes for your reviewer**: **Release note**: ```release-note NONE ```		2017-05-21 20:44:21 -07:00
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