Remove obsolete DefaultStartingUnits parameter.

It was only actually used by bomber-john. Everything
else also removed SpawnMPUnits, making it redundant.

OpenRA.FileFormats/Map/PlayerReference.cs

@@ -21,8 +21,7 @@ namespace OpenRA.FileFormats
 		public bool NonCombatant = false;
 		public bool Playable = false;
 		public string Bot = null;
-		public bool DefaultStartingUnits = false;
-		public string StartingUnitsClass;
+		public string StartingUnitsClass = null;
 		public bool AllowBots = true;
 		public bool Required = false;
 

OpenRA.Game/Map.cs

@@ -393,7 +393,6 @@ namespace OpenRA
 					Name = "Multi{0}".F(index),
 					Race = "Random",
 					Playable = true,
-					DefaultStartingUnits = true,
 					Enemies = new[] { "Creeps" }
 				};
 				Players.Add(p.Name, p);

OpenRA.Mods.RA/SpawnMPUnits.cs

@@ -29,10 +29,6 @@ namespace OpenRA.Mods.RA
 
 		void SpawnUnitsForPlayer(World w, Player p, CPos sp)
 		{
-			// They don't want a MCV - the map provides something else for them
-			if (!p.PlayerReference.DefaultStartingUnits)
-				return;
-
 			var spawnClass = p.PlayerReference.StartingUnitsClass ?? w.LobbyInfo.GlobalSettings.StartingUnitsClass;
 			var unitGroup = Rules.Info["world"].Traits.WithInterface<MPStartUnitsInfo>()
 				.Where(g => g.Class == spawnClass && g.Races != null && g.Races.Contains(p.Country.Race))

mods/ra/maps/bomber-john/map.yaml

@@ -759,8 +759,7 @@ Smudges:
 Rules:
 	World:
 		-CrateDrop:
-		SpawnMPUnits:
-			InitialUnit: mnlyr
+		-SpawnMPUnits:
 
 	APWR:
 		Buildable: