fix: remove iotdasdhboard (no activity since 2017, website gone)

README.md

@@ -798,7 +798,6 @@ _Command-line file upload_
 
 - [DeviceHive](https://www.devicehive.com/) - Open Source IoT Plaform with a wide range of integration options. ([Demo](https://playground.devicehive.com/), [Source Code](https://github.com/devicehive/devicehive-java-server)) `Apache-2.0` `Java`
 - [Domoticz](https://www.domoticz.com/) - Home Automation System that lets you monitor and configure various devices like: Lights, Switches, various sensors/meters like Temperature, Rain, Wind, UV, Electra, Gas, Water and much more. ([Source Code](https://github.com/domoticz/domoticz), [Clients](https://github.com/domoticz/domoticz-android)) `GPL-3.0` `C/C++`
-- [Iotdashboard](http://iotdashboard.pythonanywhere.com/en/) - Fast Django server for IOT Devices. ([Source Code](https://github.com/electrocoder/iotdashboard)) `Apache-2.0` `JavaScript`
 - [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`