kill find_inode_number()

the only remaining caller (in ncpfs) is guaranteed to return 0 -
we only hit it if we'd just checked that there's no dentry with
such name.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/ncpfs/dir.c

@@ -659,8 +659,6 @@ end_advance:
 	if (!valid)
 		ctl.valid = 0;
 	if (!ctl.filled && (ctl.fpos == ctx->pos)) {
-		if (!ino)
-			ino = find_inode_number(dentry, &qname);
 		if (!ino)
 			ino = iunique(dir->i_sb, 2);
 		ctl.filled = !dir_emit(ctx, qname.name, qname.len,