Remove BatchedExecutionTime from Fabric metrics

Summary: This diff removes BatchedExecutionTime from the metrics that are measured in Fabric. This does not add much value and it is not easy to compare against current version of RN

Reviewed By: shergin

Differential Revision: D14541976

fbshipit-source-id: c488e0951815306a978dd7a4246ec8a16d663218

ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java

@@ -114,7 +114,6 @@ public class FabricUIManager implements UIManager, LifecycleEventListener {
 
   private long mRunStartTime = 0l;
   private long mBatchedExecutionTime = 0l;
-  private long mNonBatchedExecutionTime = 0l;
   private long mDispatchViewUpdatesTime = 0l;
   private long mCommitStartTime = 0l;
   private long mLayoutTime = 0l;
@@ -348,7 +347,6 @@ private void dispatchMountItems() {
 
   @UiThread
   private void dispatchPreMountItems(long frameTimeNanos) {
-    long nonBatchedExecutionStartTime = SystemClock.uptimeMillis();
     Systrace.beginSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE, "FabricUIManager::premountViews");
 
     while (true) {
@@ -367,7 +365,6 @@ private void dispatchPreMountItems(long frameTimeNanos) {
 
       preMountItemsToDispatch.execute(mMountingManager);
     }
-    mNonBatchedExecutionTime = SystemClock.uptimeMillis() - nonBatchedExecutionStartTime;
     Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
   }
 
@@ -447,7 +444,6 @@ public Map<String, Long> getPerformanceCounters() {
     performanceCounters.put("DispatchViewUpdatesTime", mDispatchViewUpdatesTime);
     performanceCounters.put("RunStartTime", mRunStartTime);
     performanceCounters.put("BatchedExecutionTime", mBatchedExecutionTime);
-    performanceCounters.put("NonBatchedExecutionTime", mNonBatchedExecutionTime);
     performanceCounters.put("FinishFabricTransactionTime", mFinishTransactionTime);
     performanceCounters.put("FinishFabricTransactionCPPTime", mFinishTransactionCPPTime);
     return performanceCounters;