:bug: since Scaffold has no attribute of global_step, drop this confused comment
:bug: since Scaffold has no attribute of global_step, drop this confused comment

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