Revert "Remove BuildingInfluence trait."

This reverts commit 34bf14332887267e206d217956aab143720fc87d.

OpenRA.Mods.Common/UpdateRules/Rules/20200503/RemoveBuildingInfluence.cs

@@ -1,34 +0,0 @@
-#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.Collections.Generic;
-
-namespace OpenRA.Mods.Common.UpdateRules.Rules
-{
-	public class RemoveBuildingInfluence : UpdateRule
-	{
-		public override string Name { get { return "BuildingInfluence trait has been removed."; } }
-
-		public override string Description
-		{
-			get
-			{
-				return "BuildingInfluence trait has been removed. Its functionality has been integrated into ActorMap.";
-			}
-		}
-
-		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
-		{
-			actorNode.RemoveNodes("BuildingInfluence");
-			yield break;
-		}
-	}
-}

OpenRA.Mods.Common/UpdateRules/UpdatePath.cs

@@ -78,7 +78,6 @@ namespace OpenRA.Mods.Common.UpdateRules
 				new RenameCircleContrast(),
 				new SplitDamagedByTerrain(),
 				new RemoveLaysTerrain(),
-				new RemoveBuildingInfluence(),
 			})
 		};