diff --git a/crypto/internal.h b/crypto/internal.h
index 6944d56a..a251b951 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -117,14 +117,7 @@
 #include <string.h>
 
 #if !defined(__cplusplus)
-#if defined(__GNUC__) && \
-    (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800
-// |alignas| and |alignof| were added in C11. GCC added support in version 4.8.
-// Testing for __STDC_VERSION__/__cplusplus doesn't work because 4.7 already
-// reports support for C11.
-#define alignas(x) __attribute__ ((aligned (x)))
-#define alignof(x) __alignof__ (x)
-#elif defined(_MSC_VER)
+#if defined(_MSC_VER)
 #define alignas(x) __declspec(align(x))
 #define alignof __alignof
 #else