Convert field to local

Reviewed By: astreet

Differential Revision: D3463353

fbshipit-source-id: 57781197da57409b869755dbbddfe0f28c476bfb

Author: lexs

ReactAndroid/src/main/java/com/facebook/react/XReactInstanceManagerImpl.java

@@ -126,7 +126,6 @@
   private final MemoryPressureRouter mMemoryPressureRouter;
   private final @Nullable NativeModuleCallExceptionHandler mNativeModuleCallExceptionHandler;
   private final JSCConfig mJSCConfig;
-  private @Nullable RedBoxHandler mRedBoxHandler;
 
   private final ReactInstanceDevCommandsHandler mDevInterface =
       new ReactInstanceDevCommandsHandler() {
@@ -299,13 +298,12 @@ public T get() throws Exception {
     mJSMainModuleName = jsMainModuleName;
     mPackages = packages;
     mUseDeveloperSupport = useDeveloperSupport;
-    mRedBoxHandler = redBoxHandler;
     mDevSupportManager = DevSupportManagerFactory.create(
         applicationContext,
         mDevInterface,
         mJSMainModuleName,
         useDeveloperSupport,
-        mRedBoxHandler);
+        redBoxHandler);
     mBridgeIdleDebugListener = bridgeIdleDebugListener;
     mLifecycleState = initialLifecycleState;
     mUIImplementationProvider = uiImplementationProvider;