remove dead demo link for openhab

README.md

@@ -899,7 +899,7 @@ _Games, game servers and control panels._
 - [Gladys](https://gladysproject.com) - Gladys is an open-source home assistant which runs on your Raspberry Pi. ([Source Code](https://github.com/GladysProject/Gladys)) `MIT` `Nodejs`
 - [Home Assistant](https://home-assistant.io/) - Open-source home automation platform. ([Demo](https://home-assistant.io/demo/), [Source Code](https://github.com/home-assistant/home-assistant)) `MIT` `Python`
 - [Node RED](http://nodered.org/) - Browser-based flow editor that helps you wiring hardware devices, APIs and online services to create IoT solutions. ([Source Code](https://github.com/node-red/node-red)) `Apache-2.0` `Nodejs`
-- [openHAB](http://www.openhab.org) - Vendor and technology agnostic open source software for home automation. ([Demo](http://demo.openhab.org:8080/), [Source Code](https://github.com/openhab/openhab-core)) `EPL-2.0` `Java`
+- [openHAB](http://www.openhab.org) - Vendor and technology agnostic open source software for home automation. ([Source Code](https://github.com/openhab/openhab-core)) `EPL-2.0` `Java`
 - [OpenRemote](https://openremote.io) - 100% Open Source IoT Platform - IoT Asset management, Flow Rules and WHEN-THEN rules, Data visualization, Edge Gateway. ([Demo](https://demo.openremote.io/), [Source Code](https://github.com/openremote/openremote)) `AGPL-3.0` `Java`
 - [Thingsboard](https://thingsboard.io/) - Open-source IoT Platform - Device management, data collection, processing and visualization. ([Demo](https://demo.thingsboard.io/signup), [Source Code](https://github.com/thingsboard/thingsboard)) `Apache-2.0` `Java`
 - [Thingspeak](https://thingspeak.com/) - Open source “Internet of Things” application and API to store and retrieve data from things using HTTP. ([Demo](https://thingspeak.com/channels/public), [Source Code](https://github.com/iobridge/thingspeak)) `GPL-3.0` `Ruby`