fixed compilation warnings and errors when not using curl

src/libstrongswan/crypto/ca.c

@@ -456,7 +456,6 @@ static int print(FILE *stream, const struct printf_info *info,
 	bool utc = TRUE;
 	int written = 0;
 	const x509_t *cacert;
-	chunk_t keyid;
 	
 	if (info->alt)
 	{

src/libstrongswan/crypto/ocsp.c

@@ -467,7 +467,6 @@ static bool ocsp_parse_basic_response(chunk_t blob, int level0, response_t *res)
 {
 	u_int level, version;
 	u_int extn_oid = OID_UNKNOWN;
-	u_char buf[BUF_LEN];
 	asn1_ctx_t ctx;
 	bool critical;
 	chunk_t object;