NFS: remove unused macros

MNT_fhs_status_sz/MNT_fhandle3_sz are never used after they were
introduced. So better to remove them.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna.schumaker@netapp.com>
Cc: linux-nfs@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

fs/nfs/mount_clnt.c

@@ -29,9 +29,7 @@
  */
 #define encode_dirpath_sz	(1 + XDR_QUADLEN(MNTPATHLEN))
 #define MNT_status_sz		(1)
-#define MNT_fhs_status_sz	(1)
 #define MNT_fhandle_sz		XDR_QUADLEN(NFS2_FHSIZE)
-#define MNT_fhandle3_sz		(1 + XDR_QUADLEN(NFS3_FHSIZE))
 #define MNT_authflav3_sz	(1 + NFS_MAX_SECFLAVORS)
 
 /*