fix webrtc player assert failed because media empty

Kairlec

2024-03-21 afed8161b1647710de281fa625e796b151cc55cd

 src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java

@@ -575,8 +575,8 @@

            }else if (device.getSubscribeCycleForMobilePosition() == 0) {
                // 取消订阅
                deviceInStore.setSubscribeCycleForCatalog(0);
                removeCatalogSubscribe(deviceInStore, null);
                deviceInStore.setSubscribeCycleForMobilePosition(0);
                removeMobilePositionSubscribe(deviceInStore, null);
            }
        }
        if (deviceInStore.getGeoCoordSys() != null) {