D24589: Remove Include of unistd.h

[Albert Astals Cid]

aacid accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R411 KReversi

REVISION DETAIL
  https://phabricator.kde.org/D24589

To: twighk, #kde_games, aacid
Cc: kde-games-devel, krippendorf, hoetzel, hechenlan, bencreasy, vonreth
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