remove mqtt-cli

docker/Dockerfile.dev

@@ -21,8 +21,3 @@ RUN pip3 install pylint black
 # Install Node 14
 RUN curl -sL https://deb.nodesource.com/setup_14.x | bash - \
     && apt-get install -y nodejs
-
-# Install MQTT CLI
-RUN wget -q https://github.com/hivemq/mqtt-cli/releases/download/v4.6.0/mqtt-cli-4.6.0.deb \
-    && apt-get install -y ./mqtt-cli-4.6.0.deb \
-    && rm mqtt-cli-4.6.0.deb