When dissociating a single item of a recurring sequence, that dissociated item doesn't need any recurrence information, so completely remove also exdates etc.
When dissociating a single item of a recurring sequence, that dissociated item doesn't need any recurrence information, so completely remove also exdates etc.

svn path=/branches/KDE/3.5/kdepim/; revision=455578

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