afs: remove vestigial externs for afs_xcbhash
Commit
64cc7f0ca7a44bb214396c829268a541ab286c69 "afs: Create
afs_StaleVCache" consolidated many references to afs_xcbhash into a new
function afs_StaleVCache. However, this left many references to 'extern
afs_wrlock_t afs_xcbhash' that are no longer needed.
But actually, many of these have not been needed since
src/afs/afs_prototypes.h gained 'extern afs_rwlock_t afs_xcbhash' with
commit
8f2df21ffe59e9aa66219bf24656775b584c122d
"pull-prototypes-to-head-
20020821"
Remove the vestigial extern references.
No functional change is incurred by this commit.
Change-Id: Ie6cfb6d90c52951795378d3b42e041567d207305
Reviewed-on: https://gerrit.openafs.org/14405
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>