Use JaCoCo to generate coverage report for Maven jobs

Change-Id: I97c43b20c1e27fb5f0a73a22e0a86287361dfc35
diff --git a/jjb/templates/maven.yaml b/jjb/templates/maven.yaml
index 7d8788a..3d44a9e 100644
--- a/jjb/templates/maven.yaml
+++ b/jjb/templates/maven.yaml
@@ -59,20 +59,7 @@
           goals: '-Pci-verify clean test install'
 
     publishers:
-      - junit:
-          results: "**/TEST-*.xml"
-          allow-empty-results: '{junit-allow-empty-results}'
-      - cobertura:
-          report-file: "**/*coverage.xml"
-          targets:
-            - files:
-                healthy: 80
-                unhealthy: 0
-                failing: 0
-            - method:
-                healthy: 50
-                unhealthy: 0
-                failing: 0
+      - jacoco
 
 - job-template:
     id: maven-publish