Remove the unnecessary import based on `https://github.com/tensorflow/tensorflow/pull/42539#discussion_r485189850`.
Remove the unnecessary import based on
`https://github.com/tensorflow/tensorflow/pull/42539#discussion_r485189850`.

tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,Intel-tensorflow/tensorflow,yongtang/tensorflow,yongtang/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,karllessard/tensorflow,karllessard/tensorflow,yongtang/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,sarvex/tensorflow,tensorflow/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,petewarden/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,karllessard/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,petewarden/tensorflow,karllessard/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,annarev/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,cxxgtxy/tensorflow,Intel-Corporation/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,Intel-Corporation/tensorflow,sarvex/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,Intel-Corporation/tensorflow,gautam1858/tensorflow,annarev/tensorflow,paolodedios/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,Intel-tensorflow/tensorflow,aam-at/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,yongtang/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,tensorflow/tensorflow,yongtang/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,yongtang/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,Intel-tensorflow/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,petewarden/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,aam-at/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,gautam1858/tensorflow,yongtang/tensorflow,karllessard/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,karllessard/tensorflow,freedomtan/tensorflow,Intel-Corporation/tensorflow,paolodedios/tensorflow,annarev/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,gautam1858/tensorflow,Intel-tensorflow/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,davidzchen/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,annarev/tensorflow,sarvex/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,aam-at/tensorflow,petewarden/tensorflow,aam-at/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,gautam1858/tensorflow