Remove stacklight job. It was moved into salt-models/infra

Change-Id: I59a4f14cb2faa483b181dba0caa5d053a5d38dee
Closes-Bug: PROD-25195 (PROD:25195)
diff --git a/jenkins/client/job/stacklight/init.yml b/jenkins/client/job/stacklight/init.yml
index 6d8f563..2500254 100644
--- a/jenkins/client/job/stacklight/init.yml
+++ b/jenkins/client/job/stacklight/init.yml
@@ -1,2 +1,2 @@
-classes:
-  - system.jenkins.client.job.stacklight.cookiecutter
+# This file will be removed in Q3
+# jobs was moved into salt-models/infra repo