Update Dockerfile

Dockerfile

@@ -3,9 +3,6 @@ ARG GIT_REPO=https://github.com/iptv-org/epg.git
 ARG GIT_BRANCH=master
 ARG WORKDIR=/epg
 ENV CRON_SCHEDULE="0 0 * * *"
-ENV GZIP=false
-ENV MAX_CONNECTIONS=1
-ENV DAYS=
 ENV RUN_AT_STARTUP=true
 RUN apk update \
     && apk upgrade --available \