fix test_privacy when DHT is disabled

test/test_privacy.cpp

@@ -77,6 +77,10 @@ enum flags_t
 
 void test_proxy(proxy_settings::proxy_type proxy_type, int flags)
 {
+#ifdef TORRENT_DISABLE_DHT
+	// if DHT is disabled, we won't get any requests to it
+	flags &= ~expect_dht_msg;
+#endif
 	fprintf(stderr, "\n=== TEST == proxy: %s anonymous-mode: %s\n\n", proxy_name[proxy_type], (flags & anonymous_mode) ? "yes" : "no");
 	int http_port = start_web_server();
 	int udp_port = start_tracker();