WIN32: the nfds parameter of select() is unused.

Winsock provides an opaque SOCKET type for handling sockets and the nfds parameter of select() is ignored but kept for compatibity with BSD standard.
Expecting to handle sockets by not assuming to be an int type, this could cause a complain from MSVC when compiling for 64bit for Windows because incompatible types, so it would be better to just ignore this and just leave nfds to zero.

src/server.c

@@ -1331,9 +1331,10 @@ void *lo_server_recv_raw_stream(lo_server s, size_t * size, int *psock)
     FD_ZERO(&ps);
     for (i = (s->sockets_len - 1); i >= 0; --i) {
         FD_SET(s->sockets[i].fd, &ps);
+#ifndef WIN32
         if (s->sockets[i].fd > nfds)
             nfds = s->sockets[i].fd;
-
+#endif
         if ((data = lo_server_buffer_copy_for_dispatch(s, i, size))) {
             *psock = s->sockets[i].fd;
             return data;
@@ -1524,9 +1525,10 @@ int lo_servers_wait(lo_server *s, int *status, int num_servers, int timeout)
     for (j = 0; j < num_servers; j++) {
         for (i = 0; i < s[j]->sockets_len; i++) {
             FD_SET(s[j]->sockets[i].fd, &ps);
+#ifndef WIN32
             if (s[j]->sockets[i].fd > nfds)
                 nfds = s[j]->sockets[i].fd;
-
+#endif
             if (lo_server_buffer_contains_msg(s[j], i)) {
                 status[j] = 1;
             }
@@ -1693,9 +1695,10 @@ int lo_server_recv(lo_server s)
         FD_ZERO(&ps);
         for (i = 0; i < s->sockets_len; i++) {
             FD_SET(s->sockets[i].fd, &ps);
+#ifndef WIN32
             if (s->sockets[i].fd > nfds)
                 nfds = s->sockets[i].fd;
-
+#endif
             if (s->protocol == LO_TCP
                 && (data = lo_server_buffer_copy_for_dispatch(s, i, &size)))
             {