rm informatio about generator from cron-job docs

Author: n0npax

content/en/docs/tasks/job/automated-tasks-with-cron-jobs.md

@@ -49,12 +49,6 @@ The output is similar to this:
 cronjob.batch/hello created
 ```
 
-Alternatively, you can use `kubectl run` to create a cron job without writing a full config:
-
-```shell
-kubectl run hello --schedule="*/1 * * * *" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
-```
-
 After creating the cron job, get its status using this command:
 
 ```shell