[XFS] remove unused "readonly" arg from xlog_find_tail and xlog_recover

SGI-PV: 946611
SGI-Modid: xfs-linux-melb:xfs-kern:203307a

Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
3 files changed