Remove obsolete bits from linux packaging

packaging/linux/OpenRA.Utility.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-# OpenRA utility wrapper for linux systems with zenity
-
-if [[ "$1" == "--display-filepicker" ]]; then
-    if command -v zenity > /dev/null ; then
-        zenity --file-selection --title "$2"
-    else
-        mono OpenRA.Utility.exe "$@"
-    fi
-fi

packaging/linux/buildpackage.sh

@@ -20,7 +20,6 @@ mkdir -p $ROOTDIR/usr/bin/
 cp -T openra-bin $ROOTDIR/usr/bin/openra
 mkdir -p $ROOTDIR/usr/share/openra/
 cp -R $BUILTDIR/* "$ROOTDIR/usr/share/openra/" || exit 3
-cp OpenRA.Utility.sh $ROOTDIR/usr/share/openra/
 
 # Desktop Icons
 mkdir -p $ROOTDIR/usr/share/applications/

packaging/linux/openra-bin

@@ -1,3 +1,3 @@
 #!/bin/sh
 cd /usr/share/openra
-mono OpenRA.Game.exe SupportDir=~/.openra UtilityPath=OpenRA.Utility.sh "$@"
+mono OpenRA.Game.exe "$@"