No one seemed to notice them until they were gone. Four statues, located outside the front entrance of the historic Shelbourne Hotel in Dublin, Ireland, are the latest in a long list of monuments that have been removed across the world as part of the Black Lives Matter movement. But the precise reason why these statues are gone depends on whom you ask. To some, including hotel management, two of the statues reference the transatlantic slave trade, in which Ireland was complicit. Others see the removal as misguided, and argue…