remove vendor constraints and prune

Gopkg.toml

@@ -8,51 +8,11 @@ required = [
   "k8s.io/code-generator/cmd/defaulter-gen",
 ]
 
-
 [[constraint]]
   name = "github.com/container-storage-interface/spec"
-  version = "1.0.0-rc2"
-
-[[override]]
-  name = "github.com/golang/protobuf"
-  version = "v1.1.0"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/golang/glog"
-
-[[constraint]]
-  name = "github.com/kubernetes-csi/csi-test"
-  version = "1.0.0-rc2"
-
-[[constraint]]
-  name = "google.golang.org/grpc"
-  version = "1.9.2"
-
-[[constraint]]
-  name = "k8s.io/api"
-  version = "kubernetes-1.13.0-beta.1"
+  version = "1.0.0"
 
-[[constraint]]
-  name = "k8s.io/apimachinery"
-  version = "kubernetes-1.13.0-beta.1"
-
-[[constraint]]
-  name = "k8s.io/client-go"
-  version = "kubernetes-1.13.0-beta.1"
-
-[[override]]
-  name = "github.com/json-iterator/go"
-  version = "1.1.4"
-
-[[constraint]]
-  name = "k8s.io/code-generator"
-  version = "kubernetes-1.13.0-beta.1"
-
-[[constraint]]
-  name = "k8s.io/apiextensions-apiserver"
-  version = "kubernetes-1.13.0-beta.1"
-
-[[constraint]]
-  name = "github.com/kubernetes-csi/csi-lib-utils"
-  version = "0.3.0"
+[prune]
+  non-go = true
+  go-tests = true
+  unused-packages = true