docs: remove clients-matrix

The doc is out of maintainence, and may confuse users. We will bring it
back when we have efforts and better method to manage client bindings.

Documentation/clients-matrix.md

@@ -1,43 +0,0 @@
-# Client libraries support matrix for etcd
-
-As etcd features support is really uneven between client libraries, a compatibility matrix can be important.
-
-## v2 clients
-
-The v2 API has a lot of features, we will categorize them in a few categories:
-- **Language**: The language in which the client library was written.
-- **HTTPS Auth**: Support for SSL-certificate based authentication
-- **Reconnect**: If the client is able to reconnect automatically to another server if one fails.
-- **Mod/Lock**: Support for the locking module
-- **Mod/Leader**: Support for the leader election module
-- **GET,PUT,POST,DEL Features**: Support for all the modifiers when calling the etcd server with said HTTP method.
-
-### Supported features matrix
-
-**Legend**
-**F**: Full support **G**: Good support **B**: Basic support
-**Y**: Feature supported  **-**: Feature not supported
-
-Sorted alphabetically on language/name
-
-|Client |**Language**|**HTTPS Auth**|**Re-connect**|**GET**|**PUT**|**POST**|**DEL**|**Mod Lock**|**Mod Leader**|
-| --- | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
-|[etcd-api](https://github.com/jdarcy/etcd-api)                   |C      |-|Y|B|G|-|B|-|-|
-|[etcdcpp](https://github.com/edwardcapriolo/etcdcpp)             |C++    |-|-|F|F|G|-|-|-|
-|[cetcd](https://github.com/dwwoelfel/cetcd)                      |Clojure|-|-|F|F|-|G|-|-|
-|[clj-etcd](https://github.com/rthomas/clj-etcd)                  |Clojure|-|-|G|G|-|B|-|-|
-|[etcd-clojure](https://github.com/aterreno/etcd-clojure)         |Clojure|-|-|F|F|F|F|-|-|
-|[go-etcd](https://github.com/coreos/go-etcd)                     |go     |Y|Y|F|F|F|F|-|-|
-|[boon etcd client](https://github.com/boonproject/boon/blob/master/etcd/README.md)        |java   |Y|Y|F|F|F|F|-|F|
-|[etcd4j](https://github.com/jurmous/etcd4j)                      |java   |Y|Y|F|F|F|F|-|-|
-|[jetcd](https://github.com/diwakergupta/jetcd)                   |java   |Y|-|B|B|-|B|-|-|
-|[jetcd](https://github.com/justinsb/jetcd)                       |java   |-|-|B|B|-|B|-|-|
-|[Etcd.jl](https://github.com/forio/Etcd.jl)                      |Julia  |-|-|F|F|F|F|Y|Y|
-|[etcetera](https://github.com/drusellers/etcetera)               |.net   |-|-|F|F|F|F|-|-|
-|[node-etcd](https://github.com/stianeikeland/node-etcd)          |nodejs |Y|-|F|F|-|F|-|-|
-|[nodejs-etcd](https://github.com/lavagetto/nodejs-etcd)          |nodejs |Y|-|F|F|F|F|-|-|
-|[p5-etcd](https://metacpan.org/release/Etcd)                     |perl   |-|-|F|F|F|F|-|-|
-|[python-etcd](https://github.com/jplana/python-etcd)             |python |Y|Y|F|F|F|F|Y|-|
-|[python-etcd-client](https://github.com/dsoprea/PythonEtcdClient)|python |Y|Y|F|F|F|F|Y|Y|
-|[txetcd](https://github.com/russellhaering/txetcd)               |python |-|-|G|G|F|G|-|-|
-|[etcd-ruby](https://github.com/ranjib/etcd-ruby)                 |ruby   |-|-|F|F|F|F|-|-|