crypto: remove shadowed 'ret' variable

Both instances of 'ret' are used to store a gnutls API return code.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20230922160644.438631-2-berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

crypto/tls-cipher-suites.c

@@ -52,7 +52,6 @@ GByteArray *qcrypto_tls_cipher_suites_get_data(QCryptoTLSCipherSuites *obj,
     byte_array = g_byte_array_new();
 
     for (i = 0;; i++) {
-        int ret;
         unsigned idx;
         const char *name;
         IANA_TLS_CIPHER cipher;