viced: remove duplicate declaration

viced: remove duplicate declaration

viced_uclient_key is declared twice, remove one of the
declarations.

Reviewed-on: http://gerrit.openafs.org/5515
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
(cherry picked from commit 11a6fc948983c0a9f1fb41c58b9559750763440b)

Change-Id: Ie05ca3af9d1e6c08272335b09cb3c7a80879fc66
Reviewed-on: http://gerrit.openafs.org/5542
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>