Kingdom Hearts is such a significant part of many people’s lives, but for former Disney CEO Michael Eisner, greenlighting the iconic Square Enix franchise was just another Tuesday. Eisner must have taken a trip through Castle Oblivion, because he seems to have forgotten why he approved the series. Reporter Stephen Totilo of Game File briefly had the ear of Eisner after a panel about video game company Delphi Interactive, for which Eisner is an investor. Totilo asked the 84-year-old businessman…