Don't set XDG_DATA_HOME to read-only location

scripts/snap-wrapper.sh

@@ -17,14 +17,12 @@ export LD_LIBRARY_PATH=$SNAP/usr/lib/$ARCH/mesa-egl:$LD_LIBRARY_PATH
 # XDG Config
 export XDG_CONFIG_DIRS=$SNAP/etc/xdg:$XDG_CONFIG_DIRS
 export XDG_CONFIG_DIRS=$SNAP/usr/xdg:$XDG_CONFIG_DIRS
+
 # Note: this doesn't seem to work, QML's LocalStorage either ignores
 # or fails to use $SNAP_USER_DATA if defined here
 export XDG_DATA_DIRS=$SNAP_USER_DATA:$XDG_DATA_DIRS
 export XDG_DATA_DIRS=$SNAP/usr/share:$XDG_DATA_DIRS
 
-# Not good, needed for fontconfig
-export XDG_DATA_HOME=$SNAP/usr/share
-
 # Tell libGL where to find the drivers
 export LIBGL_DRIVERS_PATH=$SNAP/usr/lib/$ARCH/dri