fix：修复测试模块编译

iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/service/Device.java

@@ -20,7 +20,7 @@ public class Device {
 
     protected String productKey;
 
-    private String productSecret ;
+//    private String productSecret ;
 
     protected String deviceName;