Fix for crash on eject after module removal

[Christoph Hellwig]

On Sun, Apr 27, 2003 at 08:22:30AM +0200, Dominik Brodowski wrote:
> One important question is whether we will continue exporting
> register_pccard_driver() once all in-kernel users are converted.

In Linux we don't keep unused interfaces around unless we have a very
good reason.  With an interface as broken as register_pccard_driver()
I can only think of very good reasons why to kill it..