LU-6142 socklnd: remove ksnp_sharecount

LU-6142 socklnd: remove ksnp_sharecount

This field is never set, though its value is printed.
Remove it.

Test-Parameters: trivial
Signed-off-by: Mr NeilBrown <neilb@suse.com>
Change-Id: Ie1d8987d8c4981b6ac9204c27124a536bef969b5
Reviewed-on: https://review.whamcloud.com/35892
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Shaun Tancheff <stancheff@cray.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>