Merge pull request #23 from szabosteve/7.x.remove.partintro

[7.x][DOCS] Removes partintro from book index

Author: szabosteve

docs/index.asciidoc

@@ -1,17 +1,12 @@
 = Elasticsearch Java High-level client
 
-[partintro]
---
-
 The {es} Java High-level REST Client is an experimental Java client for {es}. 
 It removes all dependencies to the {es} server code base.
 
 * <<introduction>>
 * <<installation>>
 * <<connecting>>
 
---
-
 :branch: master
 include::{asciidoc-dir}/../../shared/attributes.asciidoc[]