e eec - dont set startup id on shutdown - pointless and err causing

this caises exehist to want to save and exehist is shutdown by now
with null eet data descriptors so can't anyway... less errs.

src/bin/e_exec.c

@@ -102,7 +102,6 @@ e_exec_init(void)
 EINTERN int
 e_exec_shutdown(void)
 {
-   e_exehist_startup_id_set(startup_id);
    if (_e_exec_exit_handler) ecore_event_handler_del(_e_exec_exit_handler);
    if (_e_exec_desktop_update_handler)
      ecore_event_handler_del(_e_exec_desktop_update_handler);