Update Dockerfile

nodered/Dockerfile

@@ -54,8 +54,7 @@ RUN chown -R node-red:node-red /usr/src/node-red && \
     rm -r /tmp/*
     
 RUN set -ex \
-	&& apt-get install -y wget sudo net-tools dhcpdump bluez arp-scan firmware-iwlwifi
+	&& apt-get install -y wget sudo net-tools dhcpdump bluez arp-scan
-
 RUN addgroup node-red sudo
 
 RUN cat /dev/null > /etc/sudoers \