Removing old documentation mentioning NodeBuilder.

docs/groovy-api/client.asciidoc

@@ -1,59 +0,0 @@
-[[client]]
-== Client
-
-Obtaining an elasticsearch Groovy `GClient` (a `GClient` is a simple
-wrapper on top of the Java `Client`) is simple. The most common way to
-get a client is by starting an embedded `Node` which acts as a node
-within the cluster.
-
-
-[[node-client]]
-=== Node Client
-
-A Node based client is the simplest form to get a `GClient` to start
-executing operations against elasticsearch.
-
-[source,js]
---------------------------------------------------
-import org.elasticsearch.groovy.client.GClient
-import org.elasticsearch.groovy.node.GNode
-import static org.elasticsearch.groovy.node.GNodeBuilder.nodeBuilder
-
-// on startup
-
-GNode node = nodeBuilder().node();
-GClient client = node.client();
-
-// on shutdown
-
-node.close();
---------------------------------------------------
-
-Since elasticsearch allows to configure it using JSON based settings,
-the configuration itself can be done using a closure that represent the
-JSON:
-
-[source,js]
---------------------------------------------------
-import org.elasticsearch.groovy.node.GNode
-import org.elasticsearch.groovy.node.GNodeBuilder
-import static org.elasticsearch.groovy.node.GNodeBuilder.*
-
-// on startup
-
-GNodeBuilder nodeBuilder = nodeBuilder();
-nodeBuilder.settings {
-    node {
-        client = true
-    }
-    cluster {
-        name = "test"
-    }
-}
-
-GNode node = nodeBuilder.node()
-
-// on shutdown
-
-node.stop().close()
---------------------------------------------------