[Jenkinsfile] Added existing check to mng-template archive remove function
[Jenkinsfile] Added existing check to mng-template archive remove function

subutai-io/Subutai,subutai-io/base,subutai-io/Subutai,subutai-io/Subutai,subutai-io/base,subutai-io/base,subutai-io/Subutai,subutai-io/Subutai,subutai-io/base,subutai-io/Subutai