code: public void remove(InodeView inode) {
      TtlBucket bucket = getBucketContaining(inode);
      if (bucket != null) {
        bucket.removeInode(inode);
      }
    }
docs: Removes a inode from the bucket containing it if the inode is in one of the buckets, otherwise,
  do nothing.
  
  <p>
  Assume that no inode in the buckets has ttl value that equals {@link Constants#NO_TTL}.
  If a inode with valid ttl value is inserted to the buckets and its ttl value is going to be set
  to {@link Constants#NO_TTL} later, be sure to remove the inode from the buckets first.
  
  @param inode the inode to be removed