Document removal of debugcli and telnetd

Documentation/Documentation-Contents.md

@@ -21,7 +21,8 @@
 
 ## Reference
 
- - [MaxAdmin - Admin Interface](Reference/MaxAdmin.md)
+ - [MaxCtrl - Command Line Admin Interface](Reference/MaxCtrl.md)
+ - [MaxAdmin - Legacy Admin Interface](Reference/MaxAdmin.md)
  - [Routing Hints](Reference/Hint-Syntax.md)
  - [MaxBinlogCheck](Reference/MaxBinlogCheck.md)
  - [MaxScale REST API](REST-API/API.md)
@@ -69,8 +70,8 @@ of their use.
  - [Schemarouter](Routers/SchemaRouter.md)
  - [Cat](Routers/Cat.md)
 
-There are also two diagnostic routing modules. The CLI is for MaxAdmin and
-the Debug CLI client for Telnet.
+The legacy diagnostic routing module MaxAdmin has been deprecated: avoid using
+it.
 
  - [CLI](Routers/CLI.md)
 

Documentation/Getting-Started/Configuration-Guide.md

@@ -1773,13 +1773,6 @@ Server databases. This implementation is tailored for the MariaDB MaxScale to
 MySQL Database traffic and is not a general purpose implementation of the MySQL
 protocol.
 
-##### `telnetd`
-
-The telnetd protocol module is used for connections to MariaDB MaxScale itself
-for the purposes of creating interactive user sessions with the MariaDB MaxScale
-instance itself. Currently this is used in conjunction with a special router
-implementation, the debugcli.
-
 ##### `maxscaled`
 
 The protocol used used by the maxadmin client application in order to connect to

Documentation/Release-Notes/MaxScale-2.4.0-Release-Notes.md

@@ -47,6 +47,11 @@ administrative users, recreate the user.
 
 ## Dropped Features
 
+### `debugcli` and `telnetd`
+
+The `debugcli` router and the `telnetd` protocol module it uses have been
+removed.
+
 ## New Features
 
 ### Servers can be drained

Documentation/Routers/Debug-CLI.md

@@ -1,21 +0,0 @@
-# Debug CLI
-
-The **debugcli** router is a special kind of statement based router. Rather than direct the statements at an external data source they are handled internally. These statements are simple text commands and the results are the output of debug commands within MariaDB MaxScale. The service and listener definitions for a debug cli service only differ from other services in that they require no backend server definitions.
-
-## Configuration
-
-The definition of the debug cli service is illustrated below
-
-```
-[Debug-Service]
-type=service
-router=debugcli
-
-[Debug-Listener]
-type=listener
-service=Debug Service
-protocol=telnetd
-port=4442
-```
-
-Connections using the telnet protocol to port 4442 of the MariaDB MaxScale host will result in a new debug CLI session. A default username and password are used for this module, new users may be created using the administrative interface. As soon as any users are explicitly created the default username will no longer continue to work. The default username is `admin` with a password of `mariadb`.