From 51667bf5608b571e62918efcca4425e9d15e0b45 Mon Sep 17 00:00:00 2001
From: Dan Zheng <danielzheng@google.com>
Date: Fri, 8 Nov 2019 13:33:06 -0800
Subject: [PATCH] Fix unused variable warning.

Introduced in https://github.com/apple/swift/pull/28080:
`swift-DEVELOPMENT-SNAPSHOT-2019-10-31-a -> tensorflow` merge.
---
 lib/Sema/DerivedConformanceVectorProtocol.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/Sema/DerivedConformanceVectorProtocol.cpp b/lib/Sema/DerivedConformanceVectorProtocol.cpp
index 620a7d7da08d6..f441196d21318 100644
--- a/lib/Sema/DerivedConformanceVectorProtocol.cpp
+++ b/lib/Sema/DerivedConformanceVectorProtocol.cpp
@@ -72,7 +72,6 @@ static Type getVectorProtocolVectorSpaceScalarAssocType(
 // the given context, or `nullptr` if `VectorSpaceScalar` cannot be derived.
 static Type deriveVectorProtocol_VectorSpaceScalar(NominalTypeDecl *nominal,
                                                    DeclContext *DC) {
-  auto &C = DC->getASTContext();
   // Nominal type must be a struct. (Zero stored properties is okay.)
   if (!isa<StructDecl>(nominal))
     return nullptr;