[Dataflow Streaming] Remove finalizeCommits from processWork (#39648)

Author: arunpandianp

runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/work/processing/StreamingWorkScheduler.java

@@ -232,10 +232,6 @@ private void processWork(
     KeyTransitionListener keyTransitionListener = createKeyTransitionListener();
     keyTransitionListener.onKeyTransition(null, work);
 
-    // Before any processing starts, call any pending OnCommit callbacks.  Nothing that requires
-    // cleanup should be done before this, since we might exit early here.
-    commitFinalizer.finalizeCommits(workItem.getSourceState().getFinalizeIdsList());
-
     if (workItem.getSourceState().getOnlyFinalize()) {
       handleOnlyFinalize(computationState, work, workItem);
       return;