qom: remove unimplemented class_finalize

Instead of trying to implement something that isn't well specified,
remove it. (it would be tricky to implement, since a class struct is
memcpy on children types...)
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181204142023.15982-7-marcandre.lureau@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

hw/core/machine.c

@@ -834,16 +834,6 @@ void machine_run_board_init(MachineState *machine)
     machine_class->init(machine);
 }
 
-static void machine_class_finalize(ObjectClass *klass, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(klass);
-
-    if (mc->compat_props) {
-        g_array_free(mc->compat_props, true);
-    }
-    g_free(mc->name);
-}
-
 void machine_register_compat_props(MachineState *machine)
 {
     MachineClass *mc = MACHINE_GET_CLASS(machine);
@@ -869,7 +859,6 @@ static const TypeInfo machine_info = {
     .class_size = sizeof(MachineClass),
     .class_init    = machine_class_init,
     .class_base_init = machine_class_base_init,
-    .class_finalize = machine_class_finalize,
     .instance_size = sizeof(MachineState),
     .instance_init = machine_initfn,
     .instance_finalize = machine_finalize,

include/qom/object.h

@@ -454,10 +454,8 @@ struct Object
  *   parent class initialization has occurred, but before the class itself
  *   is initialized.  This is the function to use to undo the effects of
  *   memcpy from the parent class to the descendants.
- * @class_finalize: This function is called during class destruction and is
- *   meant to release and dynamic parameters allocated by @class_init.
- * @class_data: Data to pass to the @class_init, @class_base_init and
- *   @class_finalize functions.  This can be useful when building dynamic
+ * @class_data: Data to pass to the @class_init,
+ *   @class_base_init. This can be useful when building dynamic
  *   classes.
  * @interfaces: The list of interfaces associated with this type.  This
  *   should point to a static array that's terminated with a zero filled
@@ -478,7 +476,6 @@ struct TypeInfo
 
     void (*class_init)(ObjectClass *klass, void *data);
     void (*class_base_init)(ObjectClass *klass, void *data);
-    void (*class_finalize)(ObjectClass *klass, void *data);
     void *class_data;
 
     InterfaceInfo *interfaces;

qom/object.c

@@ -49,7 +49,6 @@ struct TypeImpl
 
     void (*class_init)(ObjectClass *klass, void *data);
     void (*class_base_init)(ObjectClass *klass, void *data);
-    void (*class_finalize)(ObjectClass *klass, void *data);
 
     void *class_data;
 
@@ -114,7 +113,6 @@ static TypeImpl *type_new(const TypeInfo *info)
 
     ti->class_init = info->class_init;
     ti->class_base_init = info->class_base_init;
-    ti->class_finalize = info->class_finalize;
     ti->class_data = info->class_data;
 
     ti->instance_init = info->instance_init;