crypto_format: Remove the return value from curve25519_public_to_base64()

And fix the documentation on the function: it does produce trailing
"="s as padding.

Also remove all checks for the return value, which were redundant anyway,
because the function never failed.

Part of 29660.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/crypt_ops/crypto_curve25519.h b/src/lib/crypt_ops/crypto_curve25519.h
index 061a7a3505..cd23169cd5 100644
--- a/src/lib/crypt_ops/crypto_curve25519.h
+++ b/src/lib/crypt_ops/crypto_curve25519.h
@@ -76,8 +76,8 @@ STATIC int curve25519_basepoint_impl(uint8_t *output, const uint8_t *secret);
 
 int curve25519_public_from_base64(curve25519_public_key_t *pkey,
                                   const char *input);
-int curve25519_public_to_base64(char *output,
-                                const curve25519_public_key_t *pkey);
+void curve25519_public_to_base64(char *output,
+                                 const curve25519_public_key_t *pkey);
 
 void curve25519_set_impl_params(int use_ed);
 void curve25519_init(void);