Fix weird folder tree painting issues by removing the last traces of background pixmap handling. Thanks beineri, for noticing.
Fix weird folder tree painting issues by removing the last traces of
background pixmap handling. Thanks beineri, for noticing.

svn path=/trunk/kdepim/; revision=298312

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