From 01fec0c79dd41b713fce746d7b58680102771dcd Mon Sep 17 00:00:00 2001
From: Dan Abramov <dan.abramov@gmail.com>
Date: Tue, 1 Sep 2015 03:25:49 +0300
Subject: [PATCH] Rely on process.env.NODE_ENV being polyfilled

---
 src/utils/combineReducers.js | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/src/utils/combineReducers.js b/src/utils/combineReducers.js
index d503806480..1fdf2db982 100644
--- a/src/utils/combineReducers.js
+++ b/src/utils/combineReducers.js
@@ -105,16 +105,7 @@ export default function combineReducers(reducers) {
       return newState;
     });
 
-    if ((
-      // Node-like CommonJS environments (Browserify, Webpack)
-      typeof process !== 'undefined' &&
-      typeof process.env !== 'undefined' &&
-      process.env.NODE_ENV !== 'production'
-    ) ||
-      // React Native
-      typeof __DEV__ !== 'undefined' &&
-      __DEV__ // eslint-disable-line no-undef
-    ) {
+    if (process.env.NODE_ENV !== 'production') {
       if (!stateShapeVerified) {
         verifyStateShape(state, finalState);
         stateShapeVerified = true;