remove KCal:: since we are using it now
remove KCal:: since we are using it now

svn path=/trunk/KDE/kdepim/; revision=1006038

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi