Remove no longer used preferences.xml.
Remove no longer used preferences.xml.

--HG--
extra : convert_revision : 45cb79a83c9f5707944d190d533c7cd2ba677507

beqabeqa473/Asra,beqabeqa473/Asra,beqabeqa473/Asra,bramd/spiel,bramd/spiel,bramd/spiel