py/makemoduledefs.py: Automatically declare delegation attr functions.

So that the delegation functions don't need to be put somewhere global,
like in mpconfigport.h.  That would otherwise make it hard for extension
modules to use delegation.

Signed-off-by: Damien George <damien@micropython.org>

py/objmodule.c

@@ -34,12 +34,6 @@
 #include "py/runtime.h"
 #include "py/builtin.h"
 
-#ifndef NO_QSTR
-// Only include module definitions when not doing qstr extraction, because the
-// qstr extraction stage also generates this module definition header file.
-#include "genhdr/moduledefs.h"
-#endif
-
 STATIC void module_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     (void)kind;
     mp_obj_module_t *self = MP_OBJ_TO_PTR(self_in);