C: remove bad NAMEABLE_CLASS

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Author: elmarco

include/ex/nameable.h

@@ -8,8 +8,6 @@ G_BEGIN_DECLS
 #define EX_TYPE_NAMEABLE                (ex_nameable_get_type())
 #define EX_NAMEABLE(obj)                (G_TYPE_CHECK_INSTANCE_CAST((obj)    ,EX_TYPE_NAMEABLE,ExNameable))
 #define EX_IS_NAMEABLE(obj)             (G_TYPE_CHECK_INSTANCE_TYPE((obj)    ,EX_TYPE_NAMEABLE))
-#define EX_NAMEABLE_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST((klass)     ,EX_TYPE_NAMEABLE,ExNameableClass))
-#define EX_IS_NAMEABLE_CLASS(klass)     (G_TYPE_CHECK_CLASS_TYPE((klass)     ,EX_TYPE_NAMEABLE))
 #define EX_NAMEABLE_GET_INTERFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE((obj) ,EX_TYPE_NAMEABLE,ExNameableInterface))
 
 typedef struct _ExNameable      ExNameable;