replace old extpoll callbacks with LWS_CALLBACK_CHANGE_MODE_POLL_FD
diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index 56540b5..1ab3e74 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -189,8 +189,7 @@
 	/* external poll() management support */
 	LWS_CALLBACK_ADD_POLL_FD,
 	LWS_CALLBACK_DEL_POLL_FD,
-	LWS_CALLBACK_SET_MODE_POLL_FD,
-	LWS_CALLBACK_CLEAR_MODE_POLL_FD,
+	LWS_CALLBACK_CHANGE_MODE_POLL_FD,
 	LWS_CALLBACK_LOCK_POLL,
 	LWS_CALLBACK_UNLOCK_POLL,