[LTP] [PATCH] De-duplication: Remove requirement of needs_tmpdir

[Yang Xu]

Hi Gongyi
> The flag is not needed to be set when use these flags: '.all_filesystems',
> '.format_device', '.mntpoint', '.mount_device' '.needs_checkpoints',
> '.needs_device', '.resource_file'. These flags imply creating temporary
> directory.
Merged, thanks!