ItemRemover -> EntityRemover, clients reset spawner & remover when starting a new round

Subsurface/Source/GameSession/GameSession.cs

@@ -72,11 +72,14 @@ namespace Barotrauma
             Submarine.MainSub = submarine;
 
             GameMain.GameSession = this;
-
+                        
             CrewManager = new CrewManager();
 
             TaskManager = new TaskManager(this);
 
+            Entity.Spawner.Clear();
+            Entity.Remover.Clear();
+
             this.saveFile = saveFile;
 
             //guiRoot = new GUIFrame(new Rectangle(0,0,GameMain.GraphicsWidth,GameMain.GraphicsWidth), Color.Transparent);