btrfs/149: make it sectorsize independent

Originally this test case was designed to work with 4K sectorsize.
Now enhance it to work with any sector sizes and makes the following
changes:
.out file not to contain any traces of sector size.
Use max_inline=0 mount option so that it meets the requisite of non inline
regular extent.
Don't log the md5sum results to the output file as the data size vary by
the sectorsize.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

common/filter

@@ -271,6 +271,11 @@ _filter_xfs_io_pages_modified()
 	_filter_xfs_io_units_modified "Page" $PAGE_SIZE
 }
 
+_filter_xfs_io_numbers()
+{
+        _filter_xfs_io | sed -E 's/[0-9]+/XXXX/g'
+}
+
 _filter_test_dir()
 {
 	# TEST_DEV may be a prefix of TEST_DIR (e.g. /mnt, /mnt/ovl-mnt)