Don't query state in docker discovery

As it's not supported on some older docker, and not used anyway

zabbix_scripts/disco_docker_sudo

@@ -31,8 +31,7 @@ if ($what =~ m/^containers?/){
   $format = '{' .
                '"{#DOCKER_CONTAINER_ID}":"{{ .ID }}",' .
                '"{#DOCKER_CONTAINER_IMAGE}": "{{ .Image }}",' .
-               '"{#DOCKER_CONTAINER_NAME}":"{{ .Names }}",' .
-               '"{#DOCKER_CONTAINER_STATE}": "{{ .State }}"' .
+               '"{#DOCKER_CONTAINER_NAME}":"{{ .Names }}"' .
                '}';
   $cmd = "$docker container list --all --format '$format'";
 } elsif ($what =~ m/^networks?/){