JS_DumpHeap is removed in SpiderMonkey 38, since we have nothing using it remove it. Refs #3708.

https://bugzilla.mozilla.org/show_bug.cgi?id=1105069
https://bugzilla.mozilla.org/show_bug.cgi?id=1122842

This was SVN commit r17630.

source/simulation2/Simulation2.cpp

@@ -1,4 +1,4 @@
-/* Copyright (C) 2015 Wildfire Games.
+/* Copyright (C) 2016 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -444,9 +444,6 @@ void CSimulation2Impl::Update(int turnLength, const std::vector<SimulationComman
 		}
 	}
 
-//	if (m_TurnNumber == 0)
-//		m_ComponentManager.GetScriptInterface().DumpHeap();
-
 	// Run the GC occasionally
 	// No delay because a lot of garbage accumulates in one turn and in non-visual replays there are
 	// much more turns in the same time than in normal games.