Remove a useless XXX comment.

Cosmetic changes to the code so that the #ifdef _UNICODE block
doesn't mess emacs code formatting.

Modules/_ctypes/callproc.c

@@ -851,12 +851,12 @@ GetComError(HRESULT errcode, GUID *riid, IUnknown *pIunk)
 	progid = NULL;
 	ProgIDFromCLSID(&guid, &progid);
 
-/* XXX Is COMError derived from WindowsError or not? */
 	text = FormatError(errcode);
+	obj = Py_BuildValue(
 #ifdef _UNICODE
-	obj = Py_BuildValue("iu(uuuiu)",
+		"iu(uuuiu)",
 #else
-	obj = Py_BuildValue("is(uuuiu)",
+		"is(uuuiu)",
 #endif
 		errcode,
 		text,