push container should be enough

tools/debian_bash_upgrade

@@ -19,9 +19,8 @@ else
             if [[ $container_release != $remote_release ]];then
                 echo "upgrade container <$container> from <$container_release> to <$remote_release>"
                 /snap/bin/lxc file push /opt/debian-bash "${container}/opt/" -r
-                /snap/bin/lxc exec "$container" -- sh -c "cd /opt/debian-bash && ./install.sh --host"
             else
-                echo "debian-bash version on container <$container> already up-to-date!"
+                echo "container <$container> already up-to-date!"
             fi
         done
     fi