Update YAMLs to be what the Launch Generator serves.

See also:
- https://github.com/weaveworks/launch-generator/issues/133
- https://github.com/weaveworks/launch-generator/pull/134

Command used:
```
$ curl -fsSo prog/weave-kube/weave-daemonset-k8s-1.6.yaml "http://localhost:8080/k8s/v1.6/net?v=latest"
$ curl -fsSo prog/weave-kube/weave-daemonset.yaml "http://localhost:8080/k8s/v1.5/net?v=latest"
```
Annotations then removed.

prog/weave-kube/weave-daemonset-k8s-1.6.yaml

@@ -5,9 +5,9 @@ items:
     kind: ServiceAccount
     metadata:
       name: weave-net
-      namespace: kube-system
       labels:
         name: weave-net
+      namespace: kube-system
   - apiVersion: rbac.authorization.k8s.io/v1beta1
     kind: ClusterRole
     metadata:
@@ -51,9 +51,9 @@ items:
     kind: DaemonSet
     metadata:
       name: weave-net
-      namespace: kube-system
       labels:
         name: weave-net
+      namespace: kube-system
     spec:
       template:
         metadata:

prog/weave-kube/weave-daemonset.yaml

@@ -5,16 +5,16 @@ items:
     kind: ServiceAccount
     metadata:
       name: weave-net
-      namespace: kube-system
       labels:
         name: weave-net
+      namespace: kube-system
   - apiVersion: extensions/v1beta1
     kind: DaemonSet
     metadata:
       name: weave-net
-      namespace: kube-system
       labels:
         name: weave-net
+      namespace: kube-system
     spec:
       template:
         metadata: