Remove a default from the implementation.
Remove a default from the implementation.

svn path=/trunk/kdenetwork/kmail/; revision=10748

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