nfs: remove incorrect usage of nfs4 compound response hdr.status

3 call sites look at hdr.status before returning success.
hdr.status must be zero in this case so there's no point in this.

Currently, hdr.status is correctly processed at decode_op_hdr time
if the op status cannot be decoded.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4xdr.c

@@ -4423,8 +4423,6 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinf
 		status = decode_putfh(&xdr);
 	if (!status)
 		status = decode_fsinfo(&xdr, fsinfo);
-	if (!status)
-		status = nfs4_stat_to_errno(hdr.status);
 	return status;
 }
 
@@ -4513,8 +4511,6 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
 	status = decode_compound_hdr(&xdr, &hdr);
 	if (!status)
 		status = decode_setclientid(&xdr, clp);
-	if (!status)
-		status = nfs4_stat_to_errno(hdr.status);
 	return status;
 }
 
@@ -4535,8 +4531,6 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, str
 		status = decode_putrootfh(&xdr);
 	if (!status)
 		status = decode_fsinfo(&xdr, fsinfo);
-	if (!status)
-		status = nfs4_stat_to_errno(hdr.status);
 	return status;
 }