From d328e362e86a6af4a0664e004b8f97f18ce972c8 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <brian.david.vaughn@gmail.com>
Date: Wed, 4 Apr 2018 13:30:48 -0700
Subject: [PATCH] Removed duplicate typeof check (#12541)

---
 packages/react-reconciler/src/ReactFiberClassComponent.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/packages/react-reconciler/src/ReactFiberClassComponent.js b/packages/react-reconciler/src/ReactFiberClassComponent.js
index 679c791bd5da..3f811c11088a 100644
--- a/packages/react-reconciler/src/ReactFiberClassComponent.js
+++ b/packages/react-reconciler/src/ReactFiberClassComponent.js
@@ -370,7 +370,6 @@ export default function(
       if (
         typeof instance.getSnapshotBeforeUpdate === 'function' &&
         typeof instance.componentDidUpdate !== 'function' &&
-        typeof instance.componentDidUpdate !== 'function' &&
         !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(type)
       ) {
         didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(type);