volser: remove commented code

Apparently this predates AFS 3.0 so it should be safe to remove.

Reviewed-on: http://gerrit.openafs.org/10935
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit cc39ac77c6e8d120a41ffe67a60896463323ab31)

Change-Id: Ia034b8a14c000ee2772ba555a45a9776a20aff43
Reviewed-on: http://gerrit.openafs.org/10945
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: D Brashear <shadow@your-file-system.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>