From 4caa66f25ded7ae6fbd062332f3642b93a2d40a8 Mon Sep 17 00:00:00 2001
From: Camille GILLOT <gillot.camille@gmail.com>
Date: Sat, 9 Nov 2019 11:43:32 +0100
Subject: [PATCH] Centril review.

---
 src/librustc/ty/relate.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/librustc/ty/relate.rs b/src/librustc/ty/relate.rs
index 49a25347912a..28bd43b3ee5f 100644
--- a/src/librustc/ty/relate.rs
+++ b/src/librustc/ty/relate.rs
@@ -605,10 +605,7 @@ pub fn super_relate_consts<R: TypeRelation<'tcx>>(
                 _ =>  Err(TypeError::ConstMismatch(expected_found(relation, &a, &b))),
             };
 
-            match new_val {
-                Ok(val) => Ok(ty::ConstKind::Value(val)),
-                Err(err) => Err(err),
-            }
+            new_val.map(ty::ConstKind::Value)
         },
 
         // FIXME(const_generics): this is wrong, as it is a projection