Lighting Optimisations (#3785)

src/LightingThread.h

@@ -149,10 +149,6 @@ protected:
 	/** Uses m_BlockTypes to initialize the m_BlockLight[] data; fills in seeds for the blocklight */
 	void PrepareBlockLight(void);
 
-	/** Same as PrepareBlockLight(), but uses a different traversal scheme; possibly better perf cache-wise.
-	To be compared in perf benchmarks. */
-	void PrepareBlockLight2(void);
-
 	/** Calculates light in the light array specified, using stored seeds */
 	void CalcLight(NIBBLETYPE * a_Light);