Remove a workaround for a bug in QRegExpValidator which has been fixed in Qt 3.0.2
Remove a workaround for a bug in QRegExpValidator which has been fixed in Qt 3.0.2

svn path=/trunk/kdenetwork/kmail/; revision=137891

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