web: simplify build

We no longer need the config package because we are building it from
scratch.

web/Dockerfile

@@ -13,13 +13,9 @@ COPY rootfs/ /
 
 RUN apt-dpkg-wrap apt-get update && \
     apt-dpkg-wrap apt-get install -y cron nginx-extras jitsi-meet-web socat curl jq && \
-    apt-dpkg-wrap apt-get -d install -y jitsi-meet-web-config && \
-    dpkg -x /var/cache/apt/archives/jitsi-meet-web-config*.deb /tmp/pkg && \
-    mv /tmp/pkg/usr/share/jitsi-meet-web-config/config.js /defaults && \
     mv /usr/share/jitsi-meet/interface_config.js /defaults && \
     rm -f /etc/nginx/conf.d/default.conf && \
-    apt-cleanup && \
-    rm -rf /tmp/pkg /var/cache/apt
+    apt-cleanup
 
 EXPOSE 80 443