remove reboot option from cloud-update jenkins job

Change-Id: Ifba538855f4ba0c6c64722def2d449bdacfed886
diff --git a/jenkins/client/job/deploy/update/cloud_update.yml b/jenkins/client/job/deploy/update/cloud_update.yml
index e6688d5..3034ea5 100644
--- a/jenkins/client/job/deploy/update/cloud_update.yml
+++ b/jenkins/client/job/deploy/update/cloud_update.yml
@@ -136,10 +136,6 @@
               type: string
               default: "gtw01*"
               description: "Salt targeted physical or virtual GTW nodes (ex. gtw01*)"
-            REBOOT:
-              type: boolean
-              default: 'false'
-              description: "Reboot nodes after update"
             ROLLBACK_PKG_VERSIONS:
               type: string
               default: ""