(base16_encode_update_wrapper): Mark ctx argument

as UNUSED.

Rev: nettle/base16-meta.c:1.2

nettle/base16-meta.c

@@ -46,11 +46,9 @@ base16_encode_init(void *ctx)
 { (void) ctx; }
 
 static unsigned
-base16_encode_update_wrapper(void *ctx, uint8_t *dst,
+base16_encode_update_wrapper(void *ctx UNUSED, uint8_t *dst,
 			     unsigned length, const uint8_t *src)
 {
-  (void) ctx;
-  
   base16_encode_update(dst, length, src);
   return BASE16_ENCODE_LENGTH(length);
 }