4.0.0 Undeploying a Multi-tenant Service Cluster

Description	Used to undeploy a multi-tenant service cluster in Apache Stratos
URL	`/service/definition/<SERVICE_TYPE>`
HTTP Method	`DELETE`
Request/Response Format	`application/json`

Use case: Undepoly a currently deployed multi-tenant service cluster named appserverdev. The example request is as follows:

curl -X DELETE -H "Content-Type: application/json" -k -v -u admin:admin https://<SM_HOST>:9443/stratos/admin/service/definition/<SERVICE_TYPE>

{
  "stratosAdminResponse": {
    "message": "Successfully undeployed service cluster definition for service type appserverdev"
  }
}