From 94e4540825a74dc761b9c410e4e3ac1571d273d4 Mon Sep 17 00:00:00 2001
From: Matthew Butterick <mb@mbtype.com>
Date: Tue, 4 Dec 2018 10:33:16 -0800
Subject: [PATCH] nit

---
 pitfall/pitfall/png.rkt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pitfall/pitfall/png.rkt b/pitfall/pitfall/png.rkt
index 59dd556a..216f9aae 100644
--- a/pitfall/pitfall/png.rkt
+++ b/pitfall/pitfall/png.rkt
@@ -3,7 +3,6 @@
   racket/class
   racket/contract
   racket/draw
-  racket/promise
   sugar/unstable/class
   sugar/unstable/js
   sugar/unstable/dict