LU-14824 Revert "test: sanity 413a/b unlink timeout"

LU-14824 Revert "test: sanity 413a/b unlink timeout"

This reverts commit 5ff3e400f1a74ea49b7eb9cf19715f0fae08c3f5.
The test_413a is timing out regularly for ldiskfs MDTs.

Change-Id: Iafd28ec648f0b30b3c9e48e8f8479979a8cb0d60
Test-Parameters: trivial
Test-Parameters: mdscount=2 mdtcount=4 fstype=ldiskfs testlist=sanity env=ONLY="413a 413b"
Test-Parameters: mdscount=2 mdtcount=4 fstype=zfs testlist=sanity env=ONLY="413a 413b"
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/49646
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>