build docker image for multi arch

docker/Dockerfile

@@ -37,8 +37,7 @@ RUN apt update --fix-missing && apt install -y cron
 
 WORKDIR /var/www/mapguesser
 COPY ./ /var/www/mapguesser
-RUN docker/scripts/release.sh &&\
-    rm -rf /var/www/mapguesser/.git
+RUN rm -rf /var/www/mapguesser/.git
 
 EXPOSE 80
 EXPOSE 8090