jenkins: remove old container instead of just stopping if exists

Jenkinsfile

@@ -15,7 +15,7 @@ pipeline {
         }
         stage('Deploy') {
             steps {
-                sh 'docker stop test || exit 0'
+                sh 'docker stop test && docker rm test || exit 0'
                 sh 'docker run -d -p 3466:80 --name test test.trianta.dev:latest'
             }
         }