LU-16335 test: add fail_abort_cleanup()

LU-16335 test: add fail_abort_cleanup()

Add helper fail_abort_cleanup() to unlink test directories (call lfs
rm_entry if directory is broken) after fail_abort because after
LU-16159 update logs will be canceled upon recovery abort, which may
leave broken directories.

Update replay-single.sh in places where fail_abort is called and
directory may become broken.

Lustre-change: https://review.whamcloud.com/49335
Lustre-commit: d5fe41a02a6ed57bcbfc4a4c695bb509c9c7c313

Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=replay-single
Signed-off-by: Lai Siyao <lai.siyao@whamcloud.com>
Change-Id: I260689b1a6fa5b0b4db5aab5095cb062ae57d612
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Mikhail Pershin <mpershin@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/49713
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>