Documentation: remove other_apis from v3

Documentation/other_apis.md

@@ -1,28 +0,0 @@
-# Miscellaneous APIs
-
-* [Getting the etcd version](#getting-the-etcd-version)
-* [Checking health of an etcd member node](#checking-health-of-an-etcd-member-node)
-
-## Getting the etcd version
-
-The etcd version of a specific instance can be obtained from the `/version` endpoint.
-
-```sh
-curl -L http://127.0.0.1:2379/version
-```
-
-```
-etcd 2.0.12
-```
-
-## Checking health of an etcd member node
-
-etcd provides a `/health` endpoint to verify the health of a particular member.
-
-```sh
-curl http://10.0.0.10:2379/health
-```
-
-```json
-{"health": "true"}
-```