Revert "Add Migrations GlobalModData."

This reverts commit c204c10f5e.

OpenRA.Game/Game.cs

@@ -345,13 +345,6 @@ namespace OpenRA
 			using (new PerfTimer("LoadMaps"))
 				ModData.MapCache.LoadMaps();
 
-			if (ModData.Manifest.Contains<Migrations>())
-			{
-				var reload = ModData.Manifest.Get<Migrations>().Run();
-				if (reload)
-					InitializeMod(mod, args);
-			}
-
 			var content = ModData.Manifest.Get<ModContent>();
 			var isModContentInstalled = content.Packages
 				.Where(p => p.Value.Required)

OpenRA.Game/Migrations.cs

@@ -1,65 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2016 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.Collections.Generic;
-using System.IO;
-using System.Linq;
-
-namespace OpenRA
-{
-	public class Migrations : IGlobalModData
-	{
-		[FieldLoader.Ignore]
-		readonly List<MiniYamlNode> rules;
-
-		public Migrations(MiniYaml yaml)
-		{
-			rules = yaml.Nodes;
-		}
-
-		public bool Run()
-		{
-			var appliedRule = false;
-			foreach (var rule in rules)
-			{
-				var path = Platform.ResolvePath(rule.Value.Value);
-				if (!File.Exists(path))
-					continue;
-
-				var lengthNode = rule.Value.Nodes.FirstOrDefault(n => n.Key == "Length");
-				if (lengthNode != null)
-				{
-					var matchLength = FieldLoader.GetValue<int>("Length", lengthNode.Value.Value);
-					var actualLength = new FileInfo(path).Length;
-					if (matchLength != actualLength)
-						continue;
-				}
-
-				switch (rule.Key)
-				{
-					case "delete":
-						Log.Write("debug", "Migration: Deleting file {0}", path);
-						Console.WriteLine("Migration: Deleting file {0}", path);
-
-						File.Delete(path);
-						appliedRule = true;
-						break;
-					default:
-						Log.Write("debug", "Unknown migration command {0} - ignoring", rule.Value.Value);
-						break;
-				}
-			}
-
-			return appliedRule;
-		}
-	}
-}

OpenRA.Game/OpenRA.Game.csproj

@@ -245,7 +245,6 @@
     <Compile Include="FileSystem\ZipFolder.cs" />
     <Compile Include="Primitives\float3.cs" />
     <Compile Include="ModContent.cs" />
-    <Compile Include="Migrations.cs" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="FileSystem\D2kSoundResources.cs" />