Revert "monitor: Convert do_pci_device_hot_remove() to QObject"

We don't want pci_del in QMP.  Use device_del instead.

This reverts commit 6848d827162fea039f2658414a4adb6164a4f9b0.

Conflicts:

	hw/pci-hotplug.c
	sysemu.h

Signed-off-by: Markus Armbruster <[email protected]>
diff --git a/sysemu.h b/sysemu.h
index 47975b5..643c0c6 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -204,8 +204,7 @@
 void pci_device_hot_add(Monitor *mon, const QDict *qdict);
 void drive_hot_add(Monitor *mon, const QDict *qdict);
 int pci_device_hot_remove(Monitor *mon, const char *pci_addr);
-int do_pci_device_hot_remove(Monitor *mon, const QDict *qdict,
-                             QObject **ret_data);
+void do_pci_device_hot_remove(Monitor *mon, const QDict *qdict);
 
 /* serial ports */