core: remove duplicate-id-active
#15900
Merged
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duplicate-id-active
is deprecated in axe-core (See dequelabs/axe-core#3892):Our internal review of accessibility audits does seem to contradict this a bit by saying it is a good signal. However, there were some concerns in that spreadsheet about how useful it was on page load, and since axe doesn't seem to be supporting it anymore I think it's safe to remove.
Part of #15440