Index: kernel/arch/amd64/include/mm/page.h
===================================================================
--- kernel/arch/amd64/include/mm/page.h	(revision ad2e39b0d2314844ed6e863c4cb255155c40ad79)
+++ kernel/arch/amd64/include/mm/page.h	(revision 2a513972e478d8d6c6d501f4bc21fa22fbde43f6)
@@ -52,6 +52,4 @@
 #define PAGE_WIDTH	FRAME_WIDTH
 #define PAGE_SIZE	FRAME_SIZE
-
-#define PAGE_COLOR_BITS	0			/* dummy */
 
 #ifdef KERNEL