diff --git a/core/sha1.c b/core/sha1.c
index fe8da835..caa347bf 100644
--- a/core/sha1.c
+++ b/core/sha1.c
@@ -278,18 +278,3 @@ void SHA1Final(
     memset(context, '\0', sizeof(*context));
     memset(&finalcount, '\0', sizeof(finalcount));
 }
-
-void SHA1(
-    char *hash_out,
-    const char *str,
-    int len)
-{
-    SHA1_CTX ctx;
-    unsigned int ii;
-
-    SHA1Init(&ctx);
-    for (ii=0; ii<len; ii+=1)
-        SHA1Update(&ctx, (const unsigned char*)str + ii, 1);
-    SHA1Final((unsigned char *)hash_out, &ctx);
-}
-
diff --git a/core/sha1.h b/core/sha1.h
index 96bb0086..9c51269d 100644
--- a/core/sha1.h
+++ b/core/sha1.h
@@ -36,9 +36,4 @@ void SHA1Final(
     SHA1_CTX * context
     );
 
-void SHA1(
-    char *hash_out,
-    const char *str,
-    int len);
-
 #endif /* SHA1_H */