Work around stray empty tab production caused by KConfig::deleteGroup() not deleting groups such that groupList() does not to return them anymore.
Work around stray empty tab production caused by KConfig::deleteGroup() not deleting groups such that groupList() does not to return them anymore.

svn path=/branches/kdepim/enterprise4/kdepim/; revision=822508

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