dpg, loadtesting, remove unused java files (Azure#46626)

Author: weidongxu-microsoft

sdk/appservice/azure-resourcemanager-appservice/src/test/java/com/azure/resourcemanager/appservice/OneDeployTests.java

@@ -115,6 +115,9 @@ public void canPushDeployJar() throws Exception {
             }
             connection.disconnect();
         }
+
+        Thread.sleep(60000);
+
         KuduDeploymentResult deployResult
             = webApp1.pushDeploy(DeployType.JAR, jarFile, new DeployOptions().withTrackDeployment(true));