Replace godep with dep

vendor/k8s.io/kubernetes/cluster/juju/layers/kubernetes-master/layer.yaml

@@ -0,0 +1,26 @@
+repo: https://github.com/kubernetes/kubernetes.git
+includes:
+  - 'layer:basic'
+  - 'layer:snap'
+  - 'layer:tls-client'
+  - 'layer:leadership'
+  - 'layer:debug'
+  - 'layer:metrics'
+  - 'layer:nagios'
+  - 'interface:ceph-admin'
+  - 'interface:etcd'
+  - 'interface:http'
+  - 'interface:kubernetes-cni'
+  - 'interface:kube-dns'
+  - 'interface:kube-control'
+  - 'interface:public-address'
+options:
+  basic:
+    packages:
+      - socat
+  tls-client:
+    ca_certificate_path: '/root/cdk/ca.crt'
+    server_certificate_path: '/root/cdk/server.crt'
+    server_key_path: '/root/cdk/server.key'
+    client_certificate_path: '/root/cdk/client.crt'
+    client_key_path: '/root/cdk/client.key'