The original implementation of resubmitting a delayed work item
removed the item not only from the schedule, but also from the work
queue if it was already in the work queue. This is not the semantics
of the new implementation, which will leave the work item in the queue
if the previous deadline had elapsed and the work item was submitted.
The new semantics is preferred, as it improves consistency with SMP
targets where once an item has been submitted to a queue it can be run
at any time, and scheduling it again doesn't magically reverse the
submission. The original test would never have passed on an SMP
target, and passes now on qemu_x86 only because the timing granularity
prevents the work item from being both scheduled and queued at the
same time.
The problematic test application is the one developed for the original
implementation. Correct functioning of the new implementation is
fully verified by the sibling work test. That the legacy API does not
precisely preserve the original behavior where it was not consistent
between SMP and uniprocessor targets is regrettable, but unavoidable.
Remove the tests that cannot pass reliably.
Also fix a missing reset() after a test.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>