nfsd4: remove some useless code

The "list_empty(&oo->oo_owner.so_stateids)" is aways true, so remove it.
Signed-off-by: fanchaoting <fanchaoting@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4state.c

@@ -3919,7 +3919,6 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 			 * In the 4.0 case we need to keep the owners around a
 			 * little while to handle CLOSE replay.
 			 */
-			if (list_empty(&oo->oo_owner.so_stateids))
 			move_to_close_lru(oo, SVC_NET(rqstp));
 		}
 	}