Why was Retina Display removed?

[Johnny the Angry Birds Boy]

Since 6 years ago (August 2th 2012-November 25th 2013) and (March 22th 2012-June 5th 2014), Retina Display was removed from Angry Birds Classic and Angry Birds Space. Star Wars II never had it, even though the Score font looked like Retina Display. Star Wars, Rio, and Seasons still have it though. Rio had Retina Display 1rst. Space had Retina Display 2nd. Seasons had Retina Display 3rd. Classic had Retina Display 4th. And Star Wars had it on 5th. Seriously? Why Rovio? Why?

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