nfsd: remove redundant boot_time parm from grace_done client tracking op

Since it's stored in nfsd_net, we don't need to pass it in separately.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e773036..bed41f7 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4122,7 +4122,7 @@
 
 	dprintk("NFSD: end of grace period\n");
 	nn->grace_ended = true;
-	nfsd4_record_grace_done(nn, nn->boot_time);
+	nfsd4_record_grace_done(nn);
 	locks_end_grace(&nn->nfsd4_manager);
 	/*
 	 * Now that every NFSv4 client has had the chance to recover and