NFS: Minor __nfs_revalidate_inode cleanup

Remove redundant NFS_STALE() check, a leftover due to the commit
691beb13cdc88358334ef0ba867c080a247a760f

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
1 file changed