I'm guessing this question may arise because you now have insufficient MR licences? Bear in mind that, in co-termination, there's no specific relationship between an AP and a licence. Dashboard counts the APs in Networks (the 'Current device count') and the available licences (the 'License limit'). If the device count > the license limit, you are non-compliant. So if, for exaample, you were over by one AP, it wouldn't matter which AP you removed from its Network, you'd still return to compliance. You wouldn't necessarily need to remove the last one that was added.
Of course - you might want to do that, if the person claiming it forgot to also purchase a matching license, so they pay for it - and hopefully include it next time!