Remove User FAQ refer links (#5467)

* Remove User FAQ refer links

* Remove all of the wiki refer links

docs/tasks/debug-application-cluster/debug-application.md

@@ -12,10 +12,6 @@ This is *not* a guide for people who want to debug their cluster.  For that you
 * TOC
 {:toc}
 
-## FAQ
-
-Users are highly encouraged to check out our [FAQ](https://github.com/kubernetes/kubernetes/wiki/User-FAQ).
-
 ## Diagnosing the problem
 
 The first step in troubleshooting is triage.  What is the problem?  Is it your Pods, your Replication Controller or

docs/tasks/debug-application-cluster/troubleshooting.md

@@ -31,12 +31,6 @@ development scenarios. The [Reference](/docs/reference/) section provides
 detailed documentation on the [Kubernetes API](/docs/api-reference/{{page.version}}/)
 and command-line interfaces (CLIs), such as [`kubectl`](/docs/user-guide/kubectl-overview/).
 
-We also have a number of FAQ pages:
-
-   * [User FAQ](https://github.com/kubernetes/kubernetes/wiki/User-FAQ)
-   * [Debugging FAQ](https://github.com/kubernetes/kubernetes/wiki/Debugging-FAQ)
-   * [Services FAQ](https://github.com/kubernetes/kubernetes/wiki/Services-FAQ)
-
 You may also find the Stack Overflow topics relevant:
 
    * [Kubernetes](http://stackoverflow.com/questions/tagged/kubernetes)