Turning off version-control in BBDB buffer

[Daniel Finster]

I have emacs set to save the last two version of all files I edit,
because this is the way I like it.  However, I see no reason why my
almost 500k BBDB database needs this treatment as well.  I tried the
following:

(add-hook 'bbdb-mode-hook
          '(lambda ()
             (make-local-variable 'version-control)
             (setq version-control nil)))

But it doesn't work.  Any suggestions?