Remove full text index files when the full text indexer is turned off.
Remove full text index files when the full text indexer is turned off.

svn path=/trunk/kdepim/; revision=239604

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