id: remove dead code/unused imports
id: remove dead code/unused imports

silvio/rust-coreutils,jbcrail/coreutils,mauricio/coreutils,retep998/coreutils,Heather/coreutils,dbrgn/coreutils,mauricio/coreutils,filmor/coreutils,hexsel/coreutils,Arcterus/coreutils,keunwoo/coreutils,uutils/coreutils,sshling/coreutils,Shir0kamii/coreutils,polapl/coreutils,silvio/rust-coreutils,retep998/coreutils,dennis/coreutils,samfoo/coreutils,samfoo/coreutils,jbcrail/coreutils,efuquen/coreutils,tempbottle/coreutils,kevgeniy/coreutils,wimh/coreutils,hexsel/coreutils,steveklabnik/coreutils,steveklabnik/coreutils,Shir0kamii/coreutils,uutils/coreutils,filmor/coreutils,kwantam/coreutils,tempbottle/coreutils,polapl/coreutils,Gianbaoluo/coreutils,uutils/coreutils,Arcterus/coreutils,dbrgn/coreutils,kball/coreutils,dokaptur/coreutils,kevgeniy/coreutils,ebfe/coreutils,sshling/coreutils,ebfe/coreutils,Gianbaoluo/coreutils,beni55/coreutils,dbrgn/coreutils,dennis/coreutils,kball/coreutils,Shtong/coreutils,bundai223/coreutils,wimh/coreutils,keunwoo/coreutils,Heather/coreutils,bundai223/coreutils,Shtong/coreutils,kwantam/coreutils,efuquen/coreutils,beni55/coreutils