Remove redundant set of newcontext

Author: encukou

Python/import.c

@@ -2517,19 +2517,6 @@ create_builtin(
     if (_Py_ext_module_loader_info_init(&info, name, spec, origin) < 0) {
         return NULL;
     }
-    if (initfunc != NULL) {
-        /* An explicitly provided init function (see
-         * PyImport_CreateModuleFromInitfunc()) may belong to a submodule
-         * whose single-phase init creates the module using only the last
-         * component of the name (as e.g. pybind11 does).  Set the package
-         * context so that PyModule_Create() resolves the full name, the
-         * same as for dynamically loaded extensions. */
-        info.newcontext = PyUnicode_AsUTF8(info.name);
-        if (info.newcontext == NULL) {
-            _Py_ext_module_loader_info_clear(&info);
-            return NULL;
-        }
-    }
 
     struct extensions_cache_value *cached = NULL;
     PyObject *mod = import_find_extension(tstate, &info, &cached);