Delete all elements in the QMaps when the plugin is destructed.
Delete all elements in the QMaps when the plugin is destructed.

svn path=/trunk/KDE/kdepim/; revision=684535

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