fix cronjob

Procfile

@@ -1,2 +1,3 @@
 dockergen: docker-gen -watch -notify "/app/updatessl.sh updatessl" /app/nginx.tmpl /etc/nginx/conf.d/default.conf
-nginx: nginx
+nginx: nginx
+cron: cron -f

updatessl.sh

@@ -10,15 +10,6 @@ DEFAULT_CONF="/etc/nginx/conf.d/default.conf"
 CERTS="/etc/nginx/certs"
 
 
-startcron() {
-  if service cron status | grep "cron is running"; then
-    echo "cron is running, skip"
-  else
-    service cron start
-  fi
-}
-
-
 updatessl() {
 
   if grep ACME_DOMAINS $DEFAULT_CONF ; then
@@ -42,7 +33,6 @@ updatessl() {
 }
 
 
-startcron
 
 "$@"