Nothing ever overrides BeginDraw or EndDraw--any time where we might, we just

do the stuff in DrawPrimitives.  Remove unneeded virtual calls from the Actor
draw path.

Fix comments.

stepmania/src/Actor.h

@@ -102,13 +102,13 @@ public:
 		NUM_CLOCKS
 	};
 
-	void Draw();						// calls, NeedsDraw, BeginDraw, DrawPrimitives, EndDraw
+	void Draw();						// calls, EarlyAbortDraw, BeginDraw, DrawPrimitives, EndDraw
 	virtual bool EarlyAbortDraw() const { return false; }	// return true to early abort drawing of this Actor
-	virtual void BeginDraw();			// pushes transform onto world matrix stack
+	void BeginDraw();			// pushes transform onto world matrix stack
 	virtual void SetGlobalRenderStates();		// Actor should call this at beginning of their DrawPrimitives()
 	virtual void SetTextureRenderStates();		// Actor should call this after setting a texture
-	virtual void DrawPrimitives() {};	// Derivitives should override
+	virtual void DrawPrimitives() {};	// Derivatives should override
-	virtual void EndDraw();				// pops transform from world matrix stack
+	void EndDraw();				// pops transform from world matrix stack
 	
 	// TODO: make Update non virtual and change all classes to override UpdateInternal 
 	// instead.