Automatic merge from submit-queue

Remove old, core/v1 specific constructs from RESTClient

Now that metav1 is abstracted from the APIs, RESTClient should also be agnostic to the core API.

* Remove `LabelSelectorParam` and `FieldSelectorParam` - use `VersionedParams` with `ListOptions`
* Remove `UintParam`
* Remove all legacy field selector logic from `VersionedParams` - ParameterCodec now handles that
* Remove special parameters (like `timeout`) which is no longer set by most clients