change to use built in empty function
change to use built in empty function

svn path=/trunk/kdepim/; revision=365206

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