Fix samples redirect, and remove old sshd from TOC

- The /samples/wordpress/ location collided with an old redirect
  to the official images, so removed the redirect
- Removed the sshd example from the table and TOC, as the example
  was removed, and now pointing to an alternative examples. The
  page is kept for people that may have bookmarked it, but no
  need to include it in the navigation.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

_data/toc.yaml

@@ -1158,8 +1158,6 @@ samples:
     title: Rails and PostgreSQL
   - path: /samples/running_riak_service/
     title: Riak
-  - path: /samples/running_ssh_service/
-    title: SSHd
 - path: /samples/#library-references
   title: Library references
 

_samples/library/wordpress.md

@@ -1,5 +1,3 @@
 ---
 redirect_to: https://hub.docker.com/_/wordpress/
-redirect_from:
-- /samples/wordpress/
 ---

samples/index.md

@@ -42,7 +42,6 @@ Run popular software using Docker.
 | [PostgreSQL](postgresql_service.md)                           | Run a Dockerized PostgreSQL instance.                     |
 | [Rails + PostgreSQL](rails.md)                                | Run a Dockerized Rails + PostgreSQL environment.          |
 | [Riak](running_riak_service.md)                               | Run a Dockerized Riak instance.                           |
-| [SSHd](running_ssh_service.md)                                | Run a Dockerized SSHd instance.                           |
 | [WordPress](wordpress.md)                                     | Quickstart: Compose and WordPress.                        |
 
 ## Samples and documentation for official Docker images {#library-references}