docs: Remove v2 API links (#21362)
docs: Remove v2 API links (#21362)

These were added to balance the fact that the previously search-engine-indexed v2 api was removed and the links were redirected to v3 equivalents - so it provided a way back

I think we can now remove as we have removed the redirects, and the update/removal has been well notified

Signed-off-by: Ryan Northey <ea3cd978650417470535f3a4725b6b5042a6ab59@synca.io>
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