removed check_args in list_config

bin/v_list_sys_config

@@ -50,7 +50,6 @@ case $format in
     json)   json_list_conf ;;
     plain)  shell_list_conf ;;
     shell)  shell_list_conf | column -t ;;
-    *)      check_args '1' '0' '[format]'
 esac