private @Nullable T maybeRemoveFromCurrentItems(@Nullable T t) {
    if (t != null) {
      synchronized (this) {
        mCurrentItems.remove(t);
      }
    }
    return t;
  }
Relies on {@link BucketMap} to implement pooling Items from the bucket with LRU key will be
removed first

@param <T>
imagepipeline/src/main/java/com/facebook/imagepipeline/memory/LruBucketsPoolBackend.java