Merge pull request #442 from GoogleCloudPlatform/revert-439-master

Revert "Pinned k8s.io/code-generator to the same version as other k8s.io deps"

Author: liyinan926

Gopkg.lock

@@ -98,8 +98,8 @@ required = [
   revision = "df38d32658d8788cd446ba74db4bb5375c4b0cb3"
 
 [[constraint]]
+  branch = "master"
   name = "k8s.io/code-generator"
-  version = "kubernetes-1.11.8"
 
 [[constraint]]
   name = "github.com/evanphx/json-patch"