viced: Remove extraneous h_AHTAHT_r in h_GetHost_r

viced: Remove extraneous h_AHTAHT_r in h_GetHost_r

We added this address to the host with an addInterfaceAddr_r call just
a few lines before, which adds the host to the address hash table.
Another call to h_AddHostToAddrHashTable_r is pure overhead and
confusing.

Reviewed-on: http://gerrit.openafs.org/6729
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Alistair Ferguson <alistair.ferguson@mac.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
(cherry picked from commit f52c33ea10de8d1d07a9c4805366283e6ca635dc)

Change-Id: Ib97718a42f9997a1fa257533296c62f3d618e1a7
Reviewed-on: http://gerrit.openafs.org/6769
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Alistair Ferguson <alistair.ferguson@mac.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>