Trello won't natively be able to remove a label every day for you automatically, unfortunately.
You might be able to use something like Zapier, which is a third-party service that connects various applications without any coding. Zapier can run whatever zap you create each day at a specified time. You can check it out here: https://zapier.com/zapbook/trello/
Alternatively, you can also remove the label via Trello's API, and if you have any developer resources, that'll likely be the easiest way: https://developers.trello.com/v1.0/reference#id-2
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