Remove extensions/v1beta1 Job

docs/user-guide/jobs.md

@@ -21,12 +21,6 @@ due to a node hardware failure or a node reboot).
 
 A Job can also be used to run multiple pods in parallel.
 
-### extensions/v1beta1.Job is deprecated
-
-Starting from version 1.5 `extensions/v1beta1.Job` is being deprecated, with a plan to be removed in
-version 1.6 of Kubernetes (see this [issue](https://github.com/kubernetes/kubernetes/issues/32763)).
-Please use `batch/v1.Job` instead.
-
 ## Running an example Job
 
 Here is an example Job config.  It computes π to 2000 places and prints it out.

docs/user-guide/kubectl-conventions.md

@@ -36,9 +36,6 @@ In order for `kubectl run` to satisfy infrastructure as code:
 * Pod - use `run-pod/v1`.
 * Replication controller - use `run/v1`.
 * Deployment - use `deployment/v1beta1`.
-* Job (using `extension/v1beta1` endpoint) - use `job/v1beta1`. Starting from
-  version 1.5 of kuberentes this generator is deprecated, with a plan to be
-  removed in 1.6. Please use `job/v1` instead.
 * Job - use `job/v1`.
 * CronJob - use `cronjob/v2alpha1`.