xfs: clean up printing the allocsize option in

Remove superflous cast.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_super.c

@@ -446,7 +446,7 @@ xfs_showargs(
 
 	if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
 		seq_printf(m, ",allocsize=%dk",
-				(int)(1 << mp->m_allocsize_log) >> 10);
+			   (1 << mp->m_allocsize_log) >> 10);
 
 	if (mp->m_logbufs > 0)
 		seq_printf(m, ",logbufs=%d", mp->m_logbufs);