removed un-used variable

git-svn-id: http://svn.berlios.de/svnroot/repos/sipsak/trunk@443 75b5f7c7-cfd4-0310-b54c-e118b2c5249a
(cherry picked from commit d4352701040c4221d46a55c6d7124d57355d0c9f)
(cherry picked from commit cfb50cba2c)

transport.c

@@ -381,7 +381,7 @@ void print_x509_certificate_info(gnutls_session_t session) {
 	char serial[40];
 	char dn[128];
 	size_t size;
-	unsigned int algo, bits, sigalgo;
+	unsigned int algo, bits;
 	time_t expiration_time, activation_time;
 	const gnutls_datum_t *cert_list;
 	unsigned int cert_list_size = 0;