1 files changed, 0 insertions, 19 deletions
diff --git a/src/crypto/shen_ed25519_ref/ref10CommentedCombined/fe_isnonzero.c b/src/crypto/shen_ed25519_ref/ref10CommentedCombined/fe_isnonzero.c
deleted file mode 100644
index 47568001c..000000000
--- a/src/crypto/shen_ed25519_ref/ref10CommentedCombined/fe_isnonzero.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "fe.h"
-#include "crypto_verify_32.h"
-
-/*
-return 1 if f == 0
-return 0 if f != 0
-
-Preconditions:
-   |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-*/
-
-static const unsigned char zero[32];
-
-int fe_isnonzero(const fe f)
-{
-  unsigned char s[32];
-  fe_tobytes(s,f);
-  return crypto_verify_32(s,zero);
-}