diff --git a/OpenRA.Mods.Common/UpdateRules/Rules/20190314/AddFlightDynamics.cs b/OpenRA.Mods.Common/UpdateRules/Rules/20190314/AddFlightDynamics.cs
deleted file mode 100644
index d847677640..0000000000
--- a/OpenRA.Mods.Common/UpdateRules/Rules/20190314/AddFlightDynamics.cs
+++ /dev/null
@@ -1,75 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2019 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.Linq;
-
-namespace OpenRA.Mods.Common.UpdateRules.Rules
-{
-	public class AddFlightDynamics : UpdateRule
-	{
-		public override string Name { get { return "Replaced Aircraft boolean fields with FlightDynamics"; } }
-		public override string Description
-		{
-			get
-			{
-				return "Various Aircraft boolean fields have been replaced with a single FlightDynamics flag list.\n"
-					+ "Additionally, the old 'CanHover' behavior has been split into two flags:\n"
-					+ "'Slide' to change flight direction independent of facing, and 'Hover' to be able to stand still mid-air.";
-			}
-		}
-
-		static readonly string[] Properties =
-		{
-			"MoveIntoShroud",
-			"CanHover",
-			"VTOL",
-			"TurnToLand",
-			"TurnToDock",
-			"TakeOffOnResupply",
-			"TakeOffOnCreation",
-		};
-
-		readonly Dictionary<string, List<string>> locations = new Dictionary<string, List<string>>();
-
-		public override IEnumerable<string> AfterUpdate(ModData modData)
-		{
-			if (locations.Any())
-				yield return "The following aircraft definitions did not use the internal defaults\n" +
-					"and likely need a customized FlightDynamics flag list (and removal of the old booleans):\n" +
-					UpdateUtils.FormatMessageList(locations.Select(
-						kv => kv.Key + ":\n" + UpdateUtils.FormatMessageList(kv.Value)));
-
-			locations.Clear();
-		}
-
-		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
-		{
-			var aircraftTraits = actorNode.ChildrenMatching("Aircraft");
-			foreach (var aircraft in aircraftTraits)
-			{
-				var used = new List<string>();
-				foreach (var p in Properties)
-					if (aircraft.LastChildMatching(p) != null)
-						used.Add(p);
-
-				if (used.Any())
-				{
-					var location = "{0} ({1})".F(actorNode.Key, actorNode.Location.Filename);
-					locations[location] = used;
-				}
-			}
-
-			yield break;
-		}
-	}
-}
diff --git a/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs b/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
index 088fcb82c5..1e9d984b88 100644
--- a/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
+++ b/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
@@ -130,7 +130,6 @@ namespace OpenRA.Mods.Common.UpdateRules
 				new RenameHoversOffsetModifier(),
 				new AddAirAttackTypes(),
 				new RenameCarryallDelays(),
-				new AddFlightDynamics(),
 			})
 		};