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: NLuiz Capitulino <lcapitulino@redhat.com>

monitor.c

@@ -636,7 +636,7 @@ static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
     }
 }
 
-static int do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
+static void do_info(Monitor *mon, const QDict *qdict)
 {
     const mon_cmd_t *cmd;
     const char *item = qdict_get_try_str(qdict, "item");
@@ -668,11 +668,10 @@ static int do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
         cmd->mhandler.info(mon);
     }
 
-    return 0;
+    return;
 
 help:
     help_cmd(mon, "info");
-    return 0;
 }
 
 static void do_info_version_print(Monitor *mon, const QObject *data)

qemu-monitor.hx

@@ -1654,8 +1654,7 @@ EQMP
         .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