Cleanup params in jenkins jobs

Change-Id: I5400aadc63a11d54310975a1d4d722c9b90dc70b
diff --git a/jenkins/client/job/opencontrail/build/dpdk-extra.yml b/jenkins/client/job/opencontrail/build/dpdk-extra.yml
index d4960a4..0ac7b50 100644
--- a/jenkins/client/job/opencontrail/build/dpdk-extra.yml
+++ b/jenkins/client/job/opencontrail/build/dpdk-extra.yml
@@ -1,5 +1,3 @@
-classes:
-  - system.jenkins.client.job.common
 parameters:
   jenkins:
     client:
diff --git a/jenkins/client/job/opencontrail/build/generic.yml b/jenkins/client/job/opencontrail/build/generic.yml
index 58d1f27..69cb4e7 100644
--- a/jenkins/client/job/opencontrail/build/generic.yml
+++ b/jenkins/client/job/opencontrail/build/generic.yml
@@ -1,6 +1,6 @@
-classes:
-  - system.jenkins.client.job.common
 parameters:
+  _param:
+    jenkins_contrail_pipeline: "${_param:jenkins_gerrit_url}/contrail/contrail-pipeline"
   jenkins:
     client:
       job_template: