This reverts commit 95fb5b5c95eecd782965fc3effb18e0576c4c6da.
Reason for revert:
The real root cause of the problem with xml reports has been fixed at [1]. The "verify resources" test step, which uses several workers in parallel, was wrongly run with maxfail=1 - when a test failed during this test step, other workers stopped the execution of their tests before they finished, generating wrong xml reports.
The maxfail=1 option should only be used with faults tests, which are executed sequentially (only one worker).
[1] https://review.opendev.org/c/852252
Change-Id: I6b85e0dc0d2e4e31997754524c416869ca450161
bcf0873c3f