nfsd4: don't set lock stateid's sc_type to CLOSED

There's no point I can see to

	stp->st_stid.sc_type = NFS4_CLOSED_STID;

given release_lock_stateid immediately sets sc_type to 0.

That set of sc_type to 0 should be enough to prevent it being used where
we don't want it to be; NFS4_CLOSED_STID should only be needed for
actual open stateid's that are actually closed.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4state.c

@@ -5183,7 +5183,6 @@ nfsd4_free_lock_stateid(stateid_t *stateid, struct nfs4_stid *s)
 			    lockowner(stp->st_stateowner)))
 		goto out;
 
-	stp->st_stid.sc_type = NFS4_CLOSED_STID;
 	release_lock_stateid(stp);
 	ret = nfs_ok;
 
@@ -6079,10 +6078,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		 * If this is a new, never-before-used stateid, and we are
 		 * returning an error, then just go ahead and release it.
 		 */
-		if (status && new) {
-			lock_stp->st_stid.sc_type = NFS4_CLOSED_STID;
+		if (status && new)
 			release_lock_stateid(lock_stp);
-		}
 
 		mutex_unlock(&lock_stp->st_mutex);