move get_module_by_def() into PyType_GetModuleByDef()

Objects/typeobject.c

@@ -5207,8 +5207,8 @@ PyType_GetModuleState(PyTypeObject *type)
 /* Get the module of the first superclass where the module has the
  * given PyModuleDef.
  */
-static inline PyObject *
-get_module_by_def(PyTypeObject *type, PyModuleDef *def)
+PyObject *
+PyType_GetModuleByDef(PyTypeObject *type, PyModuleDef *def)
 {
     assert(PyType_Check(type));
 
@@ -5254,37 +5254,14 @@ get_module_by_def(PyTypeObject *type, PyModuleDef *def)
         }
     }
     END_TYPE_LOCK();
-    return res;
-}
 
-PyObject *
-PyType_GetModuleByDef(PyTypeObject *type, PyModuleDef *def)
-{
-    PyObject *module = get_module_by_def(type, def);
-    if (module == NULL) {
+    if (res == NULL) {
         PyErr_Format(
             PyExc_TypeError,
             "PyType_GetModuleByDef: No superclass of '%s' has the given module",
             type->tp_name);
     }
-    return module;
-}
-
-PyObject *
-_PyType_GetModuleByDef2(PyTypeObject *left, PyTypeObject *right,
-                        PyModuleDef *def)
-{
-    PyObject *module = get_module_by_def(left, def);
-    if (module == NULL) {
-        module = get_module_by_def(right, def);
-        if (module == NULL) {
-            PyErr_Format(
-                PyExc_TypeError,
-                "PyType_GetModuleByDef: No superclass of '%s' nor '%s' has "
-                "the given module", left->tp_name, right->tp_name);
-        }
-    }
-    return module;
+    return res;
 }