Monitor: Convert do_info() back to HMP

This is a HMP specific handler, it makes no sense to have it
under QMP.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/qemu-monitor.hx b/qemu-monitor.hx
index 49bcd8d..57d28ac 100644
--- a/qemu-monitor.hx
+++ b/qemu-monitor.hx
@@ -1654,8 +1654,7 @@
         .args_type  = "item:s?",
         .params     = "[subcommand]",
         .help       = "show various information about the system state",
-        .user_print = monitor_user_noop,
-        .mhandler.cmd_new = do_info,
+        .mhandler.cmd = do_info,
     },
 
 STEXI