diff --git a/libavutil/internal.h b/libavutil/internal.h
index 4c1d2f6648..58e556860f 100644
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -52,38 +52,6 @@ struct AVDictionary {
 #endif
 #endif
 
-#ifndef INT16_MIN
-#define INT16_MIN       (-0x7fff - 1)
-#endif
-
-#ifndef INT16_MAX
-#define INT16_MAX       0x7fff
-#endif
-
-#ifndef INT32_MIN
-#define INT32_MIN       (-0x7fffffff - 1)
-#endif
-
-#ifndef INT32_MAX
-#define INT32_MAX       0x7fffffff
-#endif
-
-#ifndef UINT32_MAX
-#define UINT32_MAX      0xffffffff
-#endif
-
-#ifndef INT64_MIN
-#define INT64_MIN       (-0x7fffffffffffffffLL - 1)
-#endif
-
-#ifndef INT64_MAX
-#define INT64_MAX INT64_C(9223372036854775807)
-#endif
-
-#ifndef UINT64_MAX
-#define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
-#endif
-
 #ifndef INT_BIT
 #    define INT_BIT (CHAR_BIT * sizeof(int))
 #endif