Remove constraint

Author: wallrj

Gopkg.lock

@@ -1,4 +1,3 @@
-
 # Gopkg.toml example
 #
 # Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
@@ -52,7 +51,3 @@ required = [
 [[override]]
   name = "k8s.io/gengo"
   revision = "b58fc7edb82e0c6ffc9b8aef61813c7261b785d4"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/hashicorp/go-version"