qapi: Inline and remove QERR_DEVICE_NO_HOTPLUG definition

Address the comment added in commit 4629ed1
("qerror: Finally unused, clean up"), from 2015:

  /*
   * These macros will go away, please don't use
   * in new code, and do not add new ones!
   */

Mechanical transformation using sed, and manual cleanup.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240312141343.3168265-5-armbru@redhat.com>

hw/core/qdev.c

@@ -29,7 +29,6 @@
 #include "qapi/error.h"
 #include "qapi/qapi-events-qdev.h"
 #include "qapi/qmp/qdict.h"
-#include "qapi/qmp/qerror.h"
 #include "qapi/visitor.h"
 #include "qemu/error-report.h"
 #include "qemu/option.h"
@@ -479,7 +478,8 @@ static void device_set_realized(Object *obj, bool value, Error **errp)
     static int unattached_count;
 
     if (dev->hotplugged && !dc->hotpluggable) {
-        error_setg(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj));
+        error_setg(errp, "Device '%s' does not support hotplugging",
+                   object_get_typename(obj));
         return;
     }
 

include/qapi/qmp/qerror.h

@@ -17,9 +17,6 @@
  * add new ones!
  */
 
-#define QERR_DEVICE_NO_HOTPLUG \
-    "Device '%s' does not support hotplugging"
-
 #define QERR_INVALID_PARAMETER \
     "Invalid parameter '%s'"
 

system/qdev-monitor.c

@@ -917,7 +917,7 @@ void qdev_unplug(DeviceState *dev, Error **errp)
     }
 
     if (!dc->hotpluggable) {
-        error_setg(errp, QERR_DEVICE_NO_HOTPLUG,
+        error_setg(errp, "Device '%s' does not support hotplugging",
                    object_get_typename(OBJECT(dev)));
         return;
     }