Only update gears angle in frame handler.
diff --git a/gears.c b/gears.c
index 6310479..e8d3e0b 100644
--- a/gears.c
+++ b/gears.c
@@ -369,7 +369,6 @@
 	glClearColor(0, 0, 0, 0.92);
 
 	draw_gears(gears);
-	gears->angle += 1;
 
 	frame_handler(gears->window, 0, 0, gears);