nfsd4: remove probe task's reference on client

Any null probe rpc will be synchronously destroyed by the
rpc_shutdown_client() in expire_client(), so the rpc task cannot outlast
the nfs4 client.  Therefore there's no need for that task to hold a
reference on the client.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
1 file changed