Windows: Dereg Lanman and Lsa reg values for afsredir

Windows: Dereg Lanman and Lsa reg values for afsredir

If the machine has been upgraded from an AFS SMB Server to the
AFS Redirector, the registry will have leftover configuration
for the "AFS" netbios name in the Lsa BackConnectionHostNames
value and the LanmanWorkstation ReconnectableServers and
ServersWithExtendedSessTimeout values.   These values are not
useful with the AFS Redirector since \\AFS is owned by afsredir.sys
and not the SMB redirector.  Remove the "AFS" netbios name from
these values when afsd_service.exe has started in redirector mode.

Change-Id: If8c100d3569595645c041ac58fedb1c835f9129f
Reviewed-on: http://gerrit.openafs.org/6737
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>