[Minor] Do not call legacy API in modern OpenSSL

Issue: #2587
Closes: #2587

src/libcryptobox/cryptobox.c

@@ -374,7 +374,8 @@ rspamd_cryptobox_init (void)
 	ctx->blake2_impl = blake2b_load ();
 	ctx->ed25519_impl = ed25519_load ();
 	ctx->base64_impl = base64_load ();
-#ifdef HAVE_USABLE_OPENSSL
+#if defined(HAVE_USABLE_OPENSSL) && (OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER))
+	/* Needed for old openssl api, not sure about LibreSSL */
 	ERR_load_EC_strings ();
 	ERR_load_RAND_strings ();
 	ERR_load_EVP_strings ();