void removeSpecificValueInJournal(Offset offset) {
    if (journal.containsKey(offset)) {
      recentCrcs.remove(journal.get(offset));
      journal.remove(offset);
      currentNumberOfEntries.decrementAndGet();
    }
  }
This method should be called during recovery.It supports removing some specific offset from journal.
@param offset the {@link Offset} which is targeted to be removed.
ambry-store/src/main/java/com/github/ambry/store/Journal.java