xfs: remove unused bp arg from xfs_iflush_fork()

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --cc fs/xfs/xfs_inode.c
Simple merge

diff --cc fs/xfs/xfs_inode_fork.c
Simple merge

diff --cc fs/xfs/xfs_inode_fork.h
Simple merge