diff --git a/src/osd/modules/lib/osdlib_uwp.cpp b/src/osd/modules/lib/osdlib_uwp.cpp
index 2712e499777..379829012dc 100644
--- a/src/osd/modules/lib/osdlib_uwp.cpp
+++ b/src/osd/modules/lib/osdlib_uwp.cpp
@@ -33,26 +33,6 @@ using namespace Windows::ApplicationModel::DataTransfer;
 using namespace Windows::Foundation;
 
 #include <map>
-//============================================================
-//  MACROS
-//============================================================
-
-// presumed size of a page of memory
-#define PAGE_SIZE           4096
-
-// align allocations to start or end of the page?
-#define GUARD_ALIGN_START   0
-
-#if defined(__BIGGEST_ALIGNMENT__)
-#define MAX_ALIGNMENT       __BIGGEST_ALIGNMENT__
-#elif defined(__AVX__)
-#define MAX_ALIGNMENT       32
-#elif defined(__SSE__) || defined(__x86_64__) || defined(_M_X64)
-#define MAX_ALIGNMENT       16
-#else
-#define MAX_ALIGNMENT       sizeof(int64_t)
-#endif
-
 
 //============================================================
 //  GLOBAL VARIABLES
diff --git a/src/osd/modules/lib/osdlib_win32.cpp b/src/osd/modules/lib/osdlib_win32.cpp
index a6c1180f2a3..907889f37ba 100644
--- a/src/osd/modules/lib/osdlib_win32.cpp
+++ b/src/osd/modules/lib/osdlib_win32.cpp
@@ -30,27 +30,6 @@
 #include "winutf8.h"
 #endif
 
-//============================================================
-//  MACROS
-//============================================================
-
-// presumed size of a page of memory
-#define PAGE_SIZE           4096
-
-// align allocations to start or end of the page?
-#define GUARD_ALIGN_START   0
-
-#if defined(__BIGGEST_ALIGNMENT__)
-#define MAX_ALIGNMENT       __BIGGEST_ALIGNMENT__
-#elif defined(__AVX__)
-#define MAX_ALIGNMENT       32
-#elif defined(__SSE__) || defined(__x86_64__) || defined(_M_X64)
-#define MAX_ALIGNMENT       16
-#else
-#define MAX_ALIGNMENT       sizeof(int64_t)
-#endif
-
-
 //============================================================
 //  GLOBAL VARIABLES
 //============================================================