修改COPY-FROM No. 2 jit (#5983)

* [jit] add copy-from

* fix

* rm ProgramTranslator

* rm ProgramTranslator

Author: gouzil

docs/api/paddle/jit/Overview_cn.rst

@@ -23,7 +23,6 @@ paddle.jit 目录下包含飞桨框架支持动态图转静态图相关的 API
     " :ref:`save <cn_api_paddle_jit_save>` ", "动转静模型存储接口"
     " :ref:`load <cn_api_paddle_jit_load>` ", "动转静模型载入接口"
     " :ref:`load <cn_api_paddle_jit_ignore_module>` ", "增加动转静过程中忽略转写的模块"
-    " :ref:`ProgramTranslator <cn_api_fluid_dygraph_ProgramTranslator>` ", "动转静控制主类 ProgramTranslator"
     " :ref:`TracedLayer <cn_api_fluid_dygraph_TracedLayer>` ", "备选根据 trace 动转静的接口 TracedLayer"
     " :ref:`TranslatedLayer <cn_api_fluid_dygraph_TranslatedLayer>` ", "是一个命令式编程模式 :ref:`cn_api_fluid_dygraph_Layer` 的继承类"