Remove OpenRA.PostProcess.exe.

The LAA flag is now set when packaging
Windows release installers.

packaging/windows/MakeLAA.cs

@@ -0,0 +1,36 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.IO;
+using System.Linq;
+
+namespace OpenRA.PostProcess
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			var assembly = args.First();
+			var flags = args.Skip(1).ToArray();
+
+			Console.WriteLine("Post-processing {0}", assembly);
+			var data = File.ReadAllBytes(assembly);
+			var peOffset = BitConverter.ToInt32(data, 0x3c);
+
+			// Set /LARGEADDRESSAWARE Flag (Application can handle large (>2GB) addresses)
+			Console.WriteLine(" - Enabling /LARGEADDRESSAWARE");
+			data[peOffset + 4 + 18] |= 0x20;
+
+			File.WriteAllBytes(args[0], data);
+		}
+	}
+}