Update ocr to support remove build once (#4109)
Update ocr to support remove build once (#4109)

* update ptb to support remove build once; test=develop

* update orc; test=develop

* polish code, test=develop

Co-authored-by: zhongpu <03f6cfda64aa09427542bb0057494c209261e41d@qq.com>

PaddlePaddle/models,PaddlePaddle/models,PaddlePaddle/models