Remove opencontrail jobs. It was moved into infra model

Change-Id: Ibeb704a8c50bd2e7e6d4fea5193ce7580e0dc08b
diff --git a/jenkins/client/job/opencontrail/git-mirrors/init.yml b/jenkins/client/job/opencontrail/git-mirrors/init.yml
index 4a06885..2500254 100644
--- a/jenkins/client/job/opencontrail/git-mirrors/init.yml
+++ b/jenkins/client/job/opencontrail/git-mirrors/init.yml
@@ -1,4 +1,2 @@
-classes:
-  - system.jenkins.client.job.opencontrail.git-mirrors.downstream
-  - system.jenkins.client.job.opencontrail.git-mirrors.upstream
-  - system.jenkins.client.job.opencontrail.git-mirrors.2way
+# This file will be removed in Q3
+# jobs was moved into salt-models/infra repo