Revert "stern: add page (#3517)" (#3536)

This reverts commit 0a1b47ed6f.

pages/osx/stern.md

@@ -1,24 +0,0 @@
-# Stern
-
-> Tail Logs from multiple pods and multiple containers on Kubernetes.
-> More information: <https://github.com/wercker/stern>.
-
-- Tail logs from a specific namespace:
-
-`stern {{pod_name}} --container {{container}} --namespace {{namespace}}`
-
-- Tail logs using a particular configuration file:
-
-`stern {{pod_name}} --container {{container}} --kubeconfig {{path/to/kubeconfig_file}}`
-
-- Display the last 2 hours worth of logs, tailing for newer ones:
-
-`stern {{pod_name}} --container {{container}} --since {{2h}}`
-
-- Tail logs from pods that have specific labels across all namespaces:
-
-`stern --container {{container}} -l "{{KEY1=VALUE1,KEY2=VALUE2}}" --all-namespaces`
-
-- Tail logs from containers whose name starts with "XYZ":
-
-`stern {{pod_name}} --container "{{XYZ*}}"`