Enable Random TransportClients in tests

pom.xml

@@ -34,7 +34,7 @@
         <tests.jvms>1</tests.jvms>
         <tests.shuffle>true</tests.shuffle>
         <tests.output>onerror</tests.output>
-        <tests.client.ratio>0.0</tests.client.ratio>
+        <tests.client.ratio></tests.client.ratio>
         <es.logger.level>INFO</es.logger.level>
     </properties>