EX-6169 lipe: prevent lipe_find3 interop testing

EX-6169 lipe: prevent lipe_find3 interop testing

Some tests in sanity-lipe-find3 may fail when devices are left
with not removed files from previous test sets.

Test-Parameters: trivial testlist=sanity-lipe-find3
Signed-off-by: Alexandre Ioffe <aioffe@ddn.com>
Change-Id: I8f99c0b34f343128a1ce2b9d71572f6d1a58b79a
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/50245
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>