Currently there is no point for a seperate KDE5 SalData class.
The additional NWF settings fix the wrong popup menu for qt5, so
this just moves all the NWF data and gets rid of KDE5SalData.

Change-Id: I1c02d1f660df288a0d2e1c6607b34fc1ce593727
Reviewed-on: https://gerrit.libreoffice.org/70005
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>