Jenkinsfile cleanup

simple-pipeline/Jenkinsfile

@@ -30,8 +30,8 @@ pipeline {
         stage('stage 3') {
             steps {
                 sh 'echo hello from stage 3!. This is the last stage...'
-            } // steps
-        } // stage
+            }
+        }
 
-    } // stages
-} // pipeline
+    }
+}