fix jenkinsfile

Jenkinsfile

@@ -2,8 +2,6 @@ node {
     def app
 
     stage('Clone repository') {
-        /* Let's make sure we have the repository cloned to our workspace */
-
         checkout scm
     }
 
@@ -12,17 +10,9 @@ node {
     }
 
     stage('Test image') {
-        /* Ideally, we would run a test framework against our image.
-         * For this example, we're using a Volkswagen-type approach ;-) */
         sh ./gradlew bootRun -Dng-tracker.check-run=true
         app.inside {
             sh 'echo "Tests passed"'
         }
     }
 }
-    /*stage('Push image') {
-        docker.withRegistry('https://registry.hub.docker.com', 'docker-hub-credentials') {
-            app.push("${env.BUILD_NUMBER}")
-            app.push("latest")
-        }
-    }*/