Cycles: viewport rendered draw mode now shows background images, also changed the

image editor checkerboard pattern to be the same as cycles viewport.

intern/cycles/render/buffers.h

@@ -119,7 +119,6 @@ public:
 	bool draw_ready();
 
 protected:
-	void draw_transparency_grid();
 	void device_free();
 
 	Device *device;