Remove unused InitDelegates() method. Don't mutate the Children list directly.

OpenRA.Mods.RA/Widgets/Delegates/LobbyDelegate.cs

@@ -301,7 +301,7 @@ namespace OpenRA.Mods.RA.Widgets.Delegates
 		{
 			// This causes problems for people who are in the process of editing their names (the widgets vanish from beneath them)
 			// Todo: handle this nicer
-			Players.ClearChildren();
+			Players.RemoveChildren();
 			
 			foreach (var slot in orderManager.LobbyInfo.Slots)
 			{

OpenRA.Mods.RA/Widgets/Delegates/ReplayBrowserDelegate.cs

@@ -40,7 +40,7 @@ namespace OpenRA.Mods.RA.Widgets.Delegates
 			var template = widget.GetWidget<LabelWidget>("REPLAY_TEMPLATE");
 			CurrentReplay = null;
 
-			rl.ClearChildren();
+			rl.RemoveChildren();
 			foreach (var replayFile in Directory.GetFiles(replayDir, "*.rep").Reverse())
 				AddReplay(rl, replayFile, template);
 

OpenRA.Mods.RA/Widgets/Delegates/ServerBrowserDelegate.cs

@@ -123,7 +123,7 @@ namespace OpenRA.Mods.RA.Widgets.Delegates
 
 			var sl = bg.GetWidget<ScrollPanelWidget>("SERVER_LIST");
 
-			sl.ClearChildren();
+			sl.RemoveChildren();
 			currentServer = null;
 
 			if (games == null)