Remove unused import and two import forms
Remove unused import and two import forms

argparse was imported with both 'import' and 'import from' and string import was unused,

PiperOrigin-RevId: 270164488

gunan/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,annarev/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,aldian/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,yongtang/tensorflow,renyi533/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,gunan/tensorflow,ppwwyyxx/tensorflow,Intel-Corporation/tensorflow,jhseu/tensorflow,annarev/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,paolodedios/tensorflow,Intel-Corporation/tensorflow,gunan/tensorflow,arborh/tensorflow,sarvex/tensorflow,frreiss/tensorflow-fred,xzturn/tensorflow,paolodedios/tensorflow,aam-at/tensorflow,karllessard/tensorflow,aam-at/tensorflow,yongtang/tensorflow,jhseu/tensorflow,petewarden/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,tensorflow/tensorflow,arborh/tensorflow,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow,jhseu/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gunan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,xzturn/tensorflow,ppwwyyxx/tensorflow,gautam1858/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,paolodedios/tensorflow,petewarden/tensorflow,frreiss/tensorflow-fred,xzturn/tensorflow,renyi533/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,paolodedios/tensorflow,adit-chandra/tensorflow,gunan/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,annarev/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,karllessard/tensorflow,jhseu/tensorflow,paolodedios/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,gunan/tensorflow,Intel-tensorflow/tensorflow,aldian/tensorflow,tensorflow/tensorflow,arborh/tensorflow,DavidNorman/tensorflow,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,aldian/tensorflow,aam-at/tensorflow,ppwwyyxx/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,arborh/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,xzturn/tensorflow,arborh/tensorflow,davidzchen/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,karllessard/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,renyi533/tensorflow,davidzchen/tensorflow,arborh/tensorflow,petewarden/tensorflow,adit-chandra/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,DavidNorman/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,DavidNorman/tensorflow,davidzchen/tensorflow,gunan/tensorflow,jhseu/tensorflow,ppwwyyxx/tensorflow,DavidNorman/tensorflow,aam-at/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,gunan/tensorflow,arborh/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,tensorflow/tensorflow,gautam1858/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,aam-at/tensorflow,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,ppwwyyxx/tensorflow,yongtang/tensorflow,cxxgtxy/tensorflow,jhseu/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,xzturn/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,xzturn/tensorflow,arborh/tensorflow,xzturn/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,renyi533/tensorflow,aldian/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,renyi533/tensorflow,jhseu/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,jhseu/tensorflow,renyi533/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,Intel-Corporation/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,paolodedios/tensorflow,aam-at/tensorflow,renyi533/tensorflow,petewarden/tensorflow,adit-chandra/tensorflow,adit-chandra/tensorflow,yongtang/tensorflow,ppwwyyxx/tensorflow,adit-chandra/tensorflow,renyi533/tensorflow,aam-at/tensorflow,gunan/tensorflow,gautam1858/tensorflow,arborh/tensorflow,aam-at/tensorflow,xzturn/tensorflow,annarev/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aam-at/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,renyi533/tensorflow,ppwwyyxx/tensorflow,sarvex/tensorflow,gunan/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,renyi533/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,cxxgtxy/tensorflow,aldian/tensorflow,davidzchen/tensorflow,DavidNorman/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,xzturn/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,jhseu/tensorflow,cxxgtxy/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,adit-chandra/tensorflow,yongtang/tensorflow,xzturn/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,aldian/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_saved_model,arborh/tensorflow,DavidNorman/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,karllessard/tensorflow,adit-chandra/tensorflow,freedomtan/tensorflow,annarev/tensorflow,renyi533/tensorflow,cxxgtxy/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,ppwwyyxx/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,DavidNorman/tensorflow,petewarden/tensorflow,aam-at/tensorflow,sarvex/tensorflow,yongtang/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,petewarden/tensorflow,annarev/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,aldian/tensorflow,DavidNorman/tensorflow,DavidNorman/tensorflow,gautam1858/tensorflow,gunan/tensorflow,DavidNorman/tensorflow