Cleaning up after the hierarchial message view commit.
Cleaning up after the hierarchial message view commit.

svn path=/trunk/kdenetwork/kmail/; revision=46955

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