NFS: Cleanup to remove unused flag NFS_CONTEXT_RESEND_WRITES

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

include/linux/nfs_fs.h

@@ -83,7 +83,6 @@ struct nfs_open_context {
 	fmode_t mode;
 
 	unsigned long flags;
-#define NFS_CONTEXT_RESEND_WRITES	(1)
 #define NFS_CONTEXT_BAD			(2)
 #define NFS_CONTEXT_UNLOCK	(3)
 #define NFS_CONTEXT_FILE_OPEN		(4)