Issue #915: Remove benchmark and testsuites

Signed-off-by: James Leigh <james.leigh@ontotext.com>

Author: James Leigh

README.md

@@ -2,8 +2,10 @@
 
 [![Build Status](https://travis-ci.org/eclipse/rdf4j.svg?branch=master)](https://travis-ci.org/eclipse/rdf4j)
 
-This is the main code repository for the Eclipse RDF4J project. Please see
-[RDF4J.org](http://rdf4j.org) for detailed information about RDF4J, including
+This is the main code repository for the Eclipse RDF4J project. More code can be found in
+* [rdf4j-testsuite](https://github.com/eclipse/rdf4j-testsuite) containings common tests and benchmarks
+
+Please see [RDF4J.org](http://rdf4j.org) for detailed information about RDF4J, including
 user documentation and [downloads of the latest release](http://rdf4j.org/download).
 
 [![Visit our IRC channel](https://kiwiirc.com/buttons/irc.freenode.net/rdf4j.png)](https://kiwiirc.com/client/irc.freenode.net/?nick=rdf4j-user|?#rdf4j)