DCE updater tracking code from Facebook production bundle

Author: Brian Vaughn

packages/shared/forks/ReactFeatureFlags.www.js

@@ -25,7 +25,6 @@ export const {
   enableLegacyFBSupport,
   deferRenderPhaseUpdateToNextBatch,
   enableDebugTracing,
-  enableUpdaterTracking,
   skipUnmountedBoundaries,
   enableStrictEffects,
   createRootStrictEffectsByDefault,
@@ -45,6 +44,8 @@ export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 export const enableProfilerNestedUpdateScheduledHook =
   __PROFILE__ && dynamicFeatureFlags.enableProfilerNestedUpdateScheduledHook;
+export const enableUpdaterTracking =
+  __PROFILE__ && dynamicFeatureFlags.enableUpdaterTracking;
 
 // Logs additional User Timing API marks for use with an experimental profiling tool.
 export const enableSchedulingProfiler =