Backport SVN commit 727491 by tmcguire:
Backport SVN commit 727491 by tmcguire:

Don't allow drag&drop from the favorite folder view to the folder tree.
It does not make sense and does not work.

svn path=/branches/kdepim/enterprise/kdepim/; revision=728090

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