Index: kernel/arch/amd64/include/mm/page.h
===================================================================
--- kernel/arch/amd64/include/mm/page.h	(revision 71eef11b8afe2eec0d0ac48ea6fce51144cb5b0c)
+++ kernel/arch/amd64/include/mm/page.h	(revision 677f6201e4a3431c59769072f16bf8689cd8452c)
@@ -52,6 +52,4 @@
 #define PAGE_WIDTH	FRAME_WIDTH
 #define PAGE_SIZE	FRAME_SIZE
-
-#define PAGE_COLOR_BITS	0			/* dummy */
 
 #ifdef KERNEL