ref: 5a65385a444bd02ec5a87caae299ec50dae1dfd8
parent: d26ebeec2c8e98339f85bfb5e9823c90da1ffd53
parent: 1005d639536edd36273f5ff51ce40df313675a28
author: Edward Shi <huashi@cisco.com>
date: Sun Apr 9 10:08:22 EDT 2017
Merge pull request #2717 from sijchen/mtclean3 [Encoder] clean unused multi-thread old functions