diff --git a/goldfish.hpp b/goldfish.hpp
index 89c9851..838e385 100644
--- a/goldfish.hpp
+++ b/goldfish.hpp
@@ -8,15 +8,6 @@
 #include <memory>
 #include <cstring>
 
-// Branch prediction hints
-#if defined(__GNUC__) || defined(__clang__)
-#define likely(x) __builtin_expect(!!(x), 1)
-#define unlikely(x) __builtin_expect(!!(x), 0)
-#else
-#define likely(x) (x)
-#define unlikely(x) (x)
-#endif
-
 namespace goldfish {
 
 using std::string_view;