Fixes sub-resources appearing doubled. This bug isn't related do akonadi resource allowing two calendar sources with the same name,  it's just a visualization bug.
Fixes sub-resources appearing doubled. This bug isn't related do akonadi resource allowing two calendar sources with the same name, 
it's just a visualization bug.

svn path=/trunk/KDE/kdepim/; revision=957767

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