Update to most recent version of assertj.

Signed-off-by: Kai Hudalla <[email protected]>

Author: Kai Hudalla

bom/pom.xml

@@ -29,7 +29,7 @@
 
   <properties>
     <artemis.image.name>enmasseproject/activemq-artemis:2.2.0-4</artemis.image.name>
-    <assertj-core.version>3.2.0</assertj-core.version>
+    <assertj-core.version>3.11.1</assertj-core.version>
     <californium.version>2.0.0-M11</californium.version>
     <dispatch-router.image.name>enmasseproject/qdrouterd-base:1.4.1</dispatch-router.image.name>
     <grafana.version>5.3.2</grafana.version>

services/messaging/pom.xml

@@ -34,10 +34,6 @@
       <groupId>io.vertx</groupId>
       <artifactId>vertx-unit</artifactId>
     </dependency>
-    <dependency>
-     <groupId>org.assertj</groupId>
-     <artifactId>assertj-core</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.eclipse.hono</groupId>
       <artifactId>hono-service-base</artifactId>