Automatic merge from submit-queue

move no k8s.io/kubernetes dep packages for genericapiserver

Move the next set of no-dep packages for genericapiserver.  Feel the ratchet click!

```
k8s.io/kubernetes/pkg/auth/authenticator/bearertoken -> k8s.io/apiserver/pkg/authentication/request/bearertoken
k8s.io/kubernetes/pkg/auth/authorizer/union -> k8s.io/apiserver/pkg/authorization/union
k8s.io/kubernetes/pkg/auth/group -> k8s.io/apiserver/pkg/authentication/group
k8s.io/kubernetes/pkg/httplog -> k8s.io/apiserver/pkg/httplog
k8s.io/kubernetes/pkg/ssh -> k8s.io/apiserver/pkg/ssh
k8s.io/kubernetes/pkg/storage/etcd/metrics -> k8s.io/apiserver/pkg/storage/etcd/metrics
k8s.io/kubernetes/pkg/util/cache -> k8s.io/apiserver/pkg/util/cache
k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/anonymous -> k8s.io/apiserver/pkg/authentication/request/anonymous
k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/union -> k8s.io/apiserver/pkg/authentication/request/union
k8s.io/kubernetes/plugin/pkg/auth/authenticator/request/x509 -> k8s.io/apiserver/pkg/authentication/request/x509
k8s.io/kubernetes/plugin/pkg/auth/authenticator/token/tokenfile -> k8s.io/apiserver/pkg/authentication/token/tokenfile
```

@sttts