diff --git a/lib/common/mem.h b/lib/common/mem.h
index 2b115ddb6..acc7231e9 100644
--- a/lib/common/mem.h
+++ b/lib/common/mem.h
@@ -74,12 +74,6 @@ void __msan_poison(const volatile void *a, size_t size);
 intptr_t __msan_test_shadow(const volatile void *x, size_t size);
 #endif
 
-#if defined (MEMORY_SANITIZER)
-#  define MEM_SKIP_MSAN __attribute__((no_sanitize("memory")))
-#else
-#  define MEM_SKIP_MSAN
-#endif
-
 
 /*-**************************************************************
 *  Basic Types