Delete old MQTT brokers

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HowTo: Manage OpenHab 2 configurations

1. Intro This tutorial is based on an apt-get installation of OH2 in Linux and is for advanced/manual configuration of OpenHab 2 and for troubleshooting purposes. The normal way of working with OpenHab 2 configurations is via the Paper UI and the config files in /etc/openhab2. 2. Basics OpenHab 2 is based on the Eclipse SmartHome framework and is fully written in Java. It uses the Apache Karaf (a lightweight and modular container, powered by OSGi) to store many information, including all t…