revert C++ assignment fix as it breaks gcc

Cython/Compiler/ModuleNode.py

@@ -797,10 +797,8 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
                 code.putln("}")
         for entry in py_attrs:
             name = "p->%s" % entry.cname
-            if entry.type.is_extension_type:
-                name = "((PyObject*)%s)" % name
-            code.putln("tmp = %s;" % name)
-            code.put_init_to_py_none(name, PyrexTypes.py_object_type)
+            code.putln("tmp = ((PyObject*)%s);" % name)
+            code.put_init_to_py_none(name, entry.type)
             code.putln("Py_XDECREF(tmp);")
         code.putln(
             "return 0;")