qdev: Rename unparenting callback

In commit 667d22d (qdev: move bus
removal to object_unparent) a certain reviewer missed that a private
qdev_remove_from_bus() function was introduced in midst new-style
device_*() functions... Fix this.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>

hw/qdev.c

@@ -698,7 +698,7 @@ static void device_class_base_init(ObjectClass *class, void *data)
     klass->props = NULL;
 }
 
-static void qdev_remove_from_bus(Object *obj)
+static void device_remove_from_bus(Object *obj)
 {
     DeviceState *dev = DEVICE(obj);
 
@@ -707,7 +707,7 @@ static void qdev_remove_from_bus(Object *obj)
 
 static void device_class_init(ObjectClass *class, void *data)
 {
-    class->unparent = qdev_remove_from_bus;
+    class->unparent = device_remove_from_bus;
 }
 
 void device_reset(DeviceState *dev)