DownloadRegionDialog: Simplify updateTextureLayer.
DownloadRegionDialog: Simplify updateTextureLayer.

svn path=/trunk/KDE/kdeedu/marble/; revision=1126061

probonopd/marble,adraghici/marble,utkuaydin/marble,utkuaydin/marble,tzapzoor/marble,tucnak/marble,probonopd/marble,rku/marble,tzapzoor/marble,rku/marble,utkuaydin/marble,Earthwings/marble,tucnak/marble,David-Gil/marble-dev,tucnak/marble,AndreiDuma/marble,tucnak/marble,quannt24/marble,rku/marble,AndreiDuma/marble,oberluz/marble,probonopd/marble,Earthwings/marble,David-Gil/marble-dev,quannt24/marble,oberluz/marble,quannt24/marble,rku/marble,utkuaydin/marble,adraghici/marble,AndreiDuma/marble,AndreiDuma/marble,rku/marble,quannt24/marble,utkuaydin/marble,tzapzoor/marble,oberluz/marble,oberluz/marble,David-Gil/marble-dev,tzapzoor/marble,oberluz/marble,probonopd/marble,probonopd/marble,adraghici/marble,AndreiDuma/marble,oberluz/marble,rku/marble,tucnak/marble,quannt24/marble,AndreiDuma/marble,David-Gil/marble-dev,utkuaydin/marble,Earthwings/marble,tzapzoor/marble,Earthwings/marble,tucnak/marble,Earthwings/marble,probonopd/marble,Earthwings/marble,adraghici/marble,quannt24/marble,David-Gil/marble-dev,David-Gil/marble-dev,adraghici/marble,tucnak/marble,tzapzoor/marble,quannt24/marble,tzapzoor/marble,tzapzoor/marble,adraghici/marble,probonopd/marble