From d5385a8cbab840438cab0e59b5bbbd51e471ee73 Mon Sep 17 00:00:00 2001
From: Robbert Krebbers <mail@robbertkrebbers.nl>
Date: Thu, 9 Mar 2017 23:00:23 +0100
Subject: [PATCH] Obligation Tactic is already idtac.

---
 theories/typing/sum.v | 2 --
 1 file changed, 2 deletions(-)

diff --git a/theories/typing/sum.v b/theories/typing/sum.v
index 9f53f4c1..3fadde0b 100644
--- a/theories/typing/sum.v
+++ b/theories/typing/sum.v
@@ -7,8 +7,6 @@ Set Default Proof Using "Type".
 Section sum.
   Context `{typeG Σ}.
 
-  Local Obligation Tactic := idtac.
-
   Program Definition emp : type :=
     {| ty_size := 1%nat;
        ty_own tid vl := False%I;
-- 
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