removed debugging statement

update-portainer.sh

@@ -23,8 +23,6 @@ case ${HOSTNAME} in
     ;;
 esac
 
-echo "We're on ${HOSTNAME} so the portainer image is ${portainer_image}. The name will be ${image_name}."
-
 # stop and remove portainer
 docker stop ${image_name}
 docker rm ${image_name}