diff --git a/pw_preprocessor/public/pw_preprocessor/compiler.h b/pw_preprocessor/public/pw_preprocessor/compiler.h
index 7ad892657..8a048b968 100644
--- a/pw_preprocessor/public/pw_preprocessor/compiler.h
+++ b/pw_preprocessor/public/pw_preprocessor/compiler.h
@@ -129,15 +129,6 @@
 #define PW_NO_SANITIZE(check)
 #endif  // __clang__
 
-/// Wrapper around `__has_feature`, which is defined by GCC and Clang and
-/// evaluates to a non zero constant integer if the feature is supported
-/// standardized in the current language standard or 0 if not.
-#ifdef __has_feature
-#define PW_HAVE_FEATURE(x) __has_feature(x)
-#else
-#define PW_HAVE_FEATURE(x) 0
-#endif  // __has_feature
-
 /// Wrapper around `__has_attribute`, which is defined by GCC 5+ and Clang and
 /// evaluates to a non zero constant integer if the attribute is supported or 0
 /// if not.