[O] Remove the build-in orgmode

[Shiyuan]

Hi,
    I updated Org-mode from ELPA. If I start emacs normally, M-x
org-version does show the new version(8.2.6). But if I start emacs  with
-Q, emacs will still run the built-in version(7.9.3). This is not
convenient for debugging purpose. Is there anyway to remove the built-in
version 7.9.3 completely so that even if I start emacs with -Q, emacs still
use the new version 8.2.6 from ELPA.  Thanks.

Shiyuan