remove unused variable
remove unused variable

tlerea1/xv6,xujunhai1991/xv6,junxu/xv6,panks/Xv6,UIKit0/Xv6,humphreyja/Xv6,Mifnight/xv6-public,prashantkhurana/OS,MatanGilead/myxv6,shyandsy/xv6,arianvp/xv6,jmatth/xv6,chrisdew/xv6,alex0906093/xv6,nullpo-head/xv6-mips,ckkashyap/xv6,bowlofstew/sv6,wenhuizhang/xv6-public,humphreyja/Xv6,liadgi/os163,gw/xv6,SanchayanMaity/xv6-cs450,ihciah/xv6,seckcoder/mirror-xv6,pekopeko1/xv6,aquamme/xv6,myl2821/xv6-fork,AndreiRO/xv6,meilank/CS416-hw2,eewayhsu/xv6,davidbalbert/xv6,Cealestus/cmpt332Assignment1,Raysmond/xv6,pekopeko1/xv6-code,gburd/xv6,tinti/xv6-ubuntu,fintler/xv6,shyandsy/xv6,ZheyuJin/xv6_reading,eewayhsu/xv6,voytovichs/xv6-public,gnudeep/xv6,tehgeekmeister/xv6,roygoldman/xv6-fsprot,oskarth/xv6,khalily/xv6,UIKit0/xv6-1,lenw/xv6-public,penguiner/xv6,romanzhg/xv6,wkatsak/xv6,kongming92/6828-xv6,ManaPoustizadeh/OS-finalProject,gw/xv6,roygoldman/xv6-sem,arcbbb/xv6,RicardoParizotto/xv6---stride-scheduling,ahorn/xv6,raman162/CS450,aclements/sv6,lenw/xv6-public,liorderei/OS_Class,firstblade/xv6,msyksphinz/xv6-mips,sometimesfood/xv6-public,5kg/xv6,supdizh/clean_xv6,williamsandrew/xv6,Cealestus/cmpt332Assignment1,chyka-dev/xv6-public,MrHohn/cs518hw2,chyka-dev/xv6-public,orenherman/xv6-clone,TheMatrixShibe/tmsv6,Laaia/RT-xv6,roygoldman/xv6-fsprot,vicionator/XV6,juroland/xv6,bowlofstew/xv6-public,jmatth/xv6,supr/Xv6,ManaPoustizadeh/OS-finalProject,CKost/Authorization,WeiranFang/cs518hw3,sigma-random/xv6,arcbbb/xv6,MrHohn/cs518hw2,5kg/xv6,gmy987/xv6,seckcoder/mirror-xv6,wasabiz/xv6,vicionator/XV6,WeiranFang/cs518hw3,rajma996/xv6,avana002/xv6,cpehle/xv6,gzpan123/xv6,arianvp/xv6,HawxChen/Offical-Version-xv6,nwf/xv6-public,johnson-li/xv6-homework,SarthakCodes/xv6,ihciah/XV6-OS,AskDrCatcher/xv6,expertsnipo/xv6,nullpo-head/xv6-mips,lishuwnc/Xv6,robertpd/xv6,logangorence/xv6-public,ManaPoustizadeh/OS-finalProject,arianvp/xv6,ShakhMoves/Shakh6,UIKit0/xv6-1,Y-liulian/xv6-public,SajadAzami/xv6-pm,nrahimi/xv6,galbenor/os162-4,gburd/xv6,sigma-random/xv6,lolosssss/Xv6,i/xv6,howerj/xv6,bngabonziza/xv6,sometimesfood/xv6,robertpd/xv6,Royvaknin29/OS_Ass1,baboofei/v6rt,wkatsak/xv6,t3rm1n4l/xv6,louisje/xv6,Y-liulian/xv6-public,lord021/Assignment1,nullpo-head/xv6-mips,shining-yang/xv6,rafamanzo/ep4-so,Royvaknin29/OS_Ass1,roygoldman/xv6-sem,louisje/xv6,maxymania/open-xv6,ahorn/xv6,descent/xv6,lord021/Assignment1,eewayhsu/xv6,junxu/xv6,MrHohn/CS-OperatingSystem-hw2,arajago6/Axv6_One,maxymania/open-xv6,ihciah/XV6-OS,pablogventura/xv6-public,rajma996/xv6,lorenzo-stoakes/haxv6,pekopeko1/xv6-code,bowlofstew/xv6-public,fintler/xv6,penguiner/xv6,lord021/Assignment2,dswann5/os_assignment_3,shtyd/xv6-lua,preshshah/xv6,jgome043/tearos,lorenzo-stoakes/haxv6,Laaia/RT-xv6,aclements/sv6,raman162/CS450,vicionator/XV6,nwf/xv6-public,phf/xv6-public,varunk08/xv6,bngabonziza/xv6-public,techno/xv6-mist32,AndreiRO/xv6,BMJHayward/xv6-public,williamsandrew/xv6,nwf/xv6-public,SarthakCodes/xv6,film42/xv6,pablogventura/xv6-public,bowlofstew/sv6,HugoTian/xv6,shyandsy/xv6,tehgeekmeister/xv6,voytovichs/xv6-public,imagine4077/xv6-public,SajadAzami/xv6-pm,HawxChen/Offical-Version-xv6,CHRISTOPHERDIEHL/xv6,laisborin/RT-xv6,laisborin/RT-xv6,penguiner/xv6,varunk08/xv6,Cealestus/cmpt332Assignment1,oskarth/xv6,OrangeTide/xv6-public,Laaia/RT-xv6,nomadium/xv6,justodiaz/xv6,lord021/Assignment2,chyka-dev/xv6-public,Cealestus/cmpt332Assignment1,lord021/Assignment2,gnosis23/xv6,junxu/xv6,tamlok/xv6,AskDrCatcher/xv6,gw/xv6,shyandsy/xv6,techno/xv6-mist32,arturosevilla/xv6-turi,bngabonziza/xv6-1,jmatth/xv6,myl2821/xv6-fork,jsommers/xv6-public,yubai/ksm_xv6,wangxiayang/xv6,TheMatrixShibe/tmsv6,danrods/xv6Hacks,ZheyuJin/xv6_reading,raman162/CS450,lenw/xv6-public,AZQ1994/xv6,liorderei/OS_Class,shadowfax-ring/mit-xv6,supr/Xv6,gw/xv6,juroland/xv6,sometimesfood/xv6,guilleiguaran/xv6,bngabonziza/xv6,PINK-FL0YD/xv6-public,tehgeekmeister/xv6,expertsnipo/xv6,shtyd/xv6-lua,t3rm1n4l/xv6,meilank/CS416-hw2,chnpmy/xv6,shtyd/xv6-lua,niral28/hw1,Y-liulian/xv6-public,MrHohn/CS-OperatingSystem-hw2,chnpmy/xv6,bngabonziza/xv6-1,galbenor/os162-4,walafc0/xv6,rafamanzo/ep4-so,panks/Xv6,dswann5/os_assignment_3,alex0906093/xv6,reutz19/xv6_ass4,MrHohn/CS-OperatingSystem-hw2,logangorence/xv6-public,pelhamnicholas/xv6,nomadium/xv6,nullpo-head/xv6-mips,kazunobu-fujii/xv6,pekopeko1/xv6-code,bohaoist/xv6,prashantkhurana/OS,bngabonziza/xv6-1,GautamV/xv6,ahorn/xv6,Laaia/RT-xv6,bowlofstew/sv6,cpehle/xv6,davidbalbert/xv6,nwolovick/xv6-public,tehgeekmeister/xv6,rajma996/xv6,MrHohn/cs518hw3,firstblade/xv6,prashantkhurana/OS,xv6-jp/xv6,robertpd/xv6,Mifnight/xv6-public,run/xv6,AndreiRO/xv6,chnpmy/xv6,humphreyja/Xv6,lolosssss/Xv6,shining-yang/xv6,supdizh/clean_xv6,kingsizeme/xv6,GautamV/xv6,vicionator/XV6,UIKit0/Xv6,nomadium/xv6,AskDrCatcher/xv6,xujunhai1991/xv6,dswann5/os_assignment_3,AZQ1994/xv6,s-rah/xv6-permissions,TheMatrixShibe/tmsv6,panks/Xv6,ahorn/xv6,gzpan123/xv6,bngabonziza/xv6,emaadmanzoor/xv6,yubai/ksm_xv6,ManaPoustizadeh/OS-finalProject,rafamanzo/ep2-so-xv6,forwchen/xv6,v1ta/xv6,gco/xv6,khalily/xv6,danluu/Xv6,gnosis23/xv6,rlok3000/xv6,johnson-li/xv6-homework,TheDude05/xv6,niral28/hw1,howerj/xv6,walafc0/xv6,gw/xv6,garzon/xv6,s-rah/xv6-permissions,robertpd/xv6,sometimesfood/xv6-public,walafc0/xv6,tenstep/xv6,meilank/CS416-hw1,walafc0/xv6,tlerea1/xv6,liorderei/OS_Class,gburd/xv6,supr/Xv6,AZQ1994/xv6,logangorence/xv6-public,jeffallen/xv6,kongming92/6828-xv6,danluu/Xv6,MatanGilead/myxv6,laisborin/RT-xv6,SajadAzami/xv6-pm,justodiaz/xv6,MrHohn/cs518hw2,lolosssss/Xv6,jgome043/tearos,chyka-dev/xv6-public,pablogventura/xv6-public,tinti/xv6-ubuntu,lord021/Assignment2,leenjewel/xv6_learn,5kg/xv6,HugoTian/xv6,DuskDragon/xv6,Cheukyin/xv6,ihciah/xv6,AZQ1994/xv6,xujunhai1991/xv6,run/xv6,KushOza/hw2,bohaoist/xv6,Royvaknin29/OS_Ass1,svdamani/xv6,run/xv6,yubai/ksm_xv6,aquamme/xv6,wenhuizhang/xv6-public,CHRISTOPHERDIEHL/xv6,tenstep/xv6,sdimitro/xv6,pekopeko1/xv6,PINK-FL0YD/xv6-public,t3rm1n4l/xv6,Mifnight/xv6-public,nwolovick/xv6-public,film42/xv6,CHRISTOPHERDIEHL/xv6,johnson-li/xv6-homework,msyksphinz/xv6-mips,ZheyuJin/xv6_reading,tamlok/xv6,MrHohn/cs518hw3,aclements/sv6,chnpmy/xv6,raman162/CS450,BMJHayward/xv6-public,romanzhg/xv6,juroland/xv6,MrHohn/CS-OperatingSystem-hw3,jsommers/xv6-public,shyandsy/xv6,preshshah/xv6,garzon/xv6-public,ThomasDq/xv6OS,sdimitro/xv6,svdamani/xv6,Mifnight/xv6-public,TheDude05/xv6,WeiranFang/cs518hw3,prashantkhurana/OS,MatanGilead/myxv6,SajadAzami/xv6-pm,tamlok/xv6,gzpan123/xv6,expertsnipo/xv6,sdharan/xv6-rcu,roygoldman/xv6-sem,jmatth/xv6,garzon/xv6-public,pelhamnicholas/xv6,wangxiayang/xv6,liyinhgqw/xv6,wenhuizhang/xv6-public,DuskDragon/xv6,sometimesfood/xv6-public,lolosssss/Xv6,bngabonziza/xv6-public,Cheukyin/xv6,phf/xv6-public,avana002/xv6,arturosevilla/xv6-turi,leenjewel/xv6_learn,jeffallen/xv6,nwf/xv6-public,imagine4077/xv6-public,garzon/xv6-public,reutz19/xv6_ass4,lishuwnc/Xv6,leenjewel/xv6_learn,alex0906093/xv6,arianvp/xv6,MrHohn/CS-OperatingSystem-hw3,lenw/xv6-public,romanzhg/xv6,MrHohn/cs518hw2,rlok3000/xv6,arajago6/Axv6_One,gco/xv6,descent/xv6,Cheukyin/xv6,alex0906093/xv6,kingsizeme/xv6,seckcoder/mirror-xv6,tinti/xv6-ubuntu,PINK-FL0YD/xv6-public,kongming92/6828-xv6,sdimitro/xv6,reutz19/xv6_ass4,gmy987/xv6,kingsizeme/xv6,siddharthv/xv6,gzpan123/xv6,UIKit0/Xv6,louisje/xv6,romanzhg/xv6,siddharthv/xv6,gmy987/xv6,SarthakCodes/xv6,bowlofstew/xv6-public,leenjewel/xv6_learn,CHRISTOPHERDIEHL/xv6,s-rah/xv6-permissions,voytovichs/xv6-public,yubai/ksm_xv6,voytovichs/xv6-public,msyksphinz/xv6-mips,ShakhMoves/Shakh6,chrisdew/xv6,bowlofstew/xv6-public,liyinhgqw/xv6,davidbalbert/xv6,fintler/xv6,ShakhMoves/Shakh6,seckcoder/mirror-xv6,sometimesfood/xv6,myl2821/xv6-fork,ihciah/XV6-OS,emaadmanzoor/xv6,KushOza/hw2,KushOza/hw2,konyavic/xv6,AndreiRO/xv6,expertsnipo/xv6,jgome043/tearos,laisborin/RT-xv6,pelhamnicholas/xv6,jeffallen/xv6,wenhuizhang/xv6-public,sometimesfood/xv6-public,yum185/assign1_partA,yum185/assign1_partA,i/xv6,dswann5/os_assignment_3,siddharthv/xv6,Cheukyin/xv6,yum185/assign1_partA,svdamani/xv6,codelabs-ch/xv6-muen,kingsizeme/xv6,varunk08/xv6,meilank/CS416-hw2,CKost/Authorization,UIKit0/xv6-1,techno/xv6-mist32,sigma-random/xv6,niral28/hw1,TheDude05/xv6,danrods/xv6Hacks,GautamV/xv6,konyavic/xv6,codelabs-ch/xv6-muen,lorenzo-stoakes/haxv6,pekopeko1/xv6,danrods/xv6Hacks,liadgi/os163,supdizh/clean_xv6,orenherman/xv6-clone,gburd/xv6,phf/xv6-public,i/xv6,gmy987/xv6,yubai/ksm_xv6,emaadmanzoor/xv6,baboofei/v6rt,tamlok/xv6,DuskDragon/xv6,SarthakCodes/xv6,ThomasDq/xv6OS,wasabiz/xv6,shadowfax-ring/mit-xv6,danluu/Xv6,OrangeTide/xv6-public,wangxiayang/xv6,guilleiguaran/xv6,niral28/hw1,gnudeep/xv6,firstblade/xv6,SanchayanMaity/xv6-cs450,tlerea1/xv6,nrahimi/xv6,MatanGilead/myxv6,MrHohn/cs518hw3,varunk08/xv6,sigma-random/xv6,ckkashyap/xv6,aclements/sv6,ihciah/XV6-OS,rafamanzo/ep2-so-xv6,howerj/xv6,avana002/xv6,RicardoParizotto/xv6---stride-scheduling,MrHohn/CS-OperatingSystem-hw3,gnosis23/xv6,v1ta/xv6,codelabs-ch/xv6-muen,bohaoist/xv6,t3rm1n4l/xv6,KushOza/hw2,WeiranFang/cs518hw3,roygoldman/xv6-fsprot,TheMatrixShibe/tmsv6,emaadmanzoor/xv6,davidbalbert/xv6,gnudeep/xv6,MrHohn/CS-OperatingSystem-hw2,ThomasDq/xv6OS,kazunobu-fujii/xv6,arajago6/Axv6_One,sdharan/xv6-rcu,kongming92/6828-xv6,oskarth/xv6,descent/xv6,wkatsak/xv6,meilank/CS416-hw1,OrangeTide/xv6-public,oskarth/xv6,shining-yang/xv6,yum185/assign1_partA,rlok3000/xv6,shadowfax-ring/mit-xv6,roygoldman/xv6-fsprot,humphreyja/Xv6,justodiaz/xv6,guilleiguaran/xv6,v1ta/xv6,DuskDragon/xv6,CKost/Authorization,gnosis23/xv6,danrods/xv6Hacks,shadowfax-ring/mit-xv6,bngabonziza/xv6-public,film42/xv6,meilank/CS416-hw1,film42/xv6,nrahimi/xv6,bowlofstew/sv6,BMJHayward/xv6-public,imagine4077/xv6-public,aclements/sv6,ThomasDq/xv6OS,CKost/Authorization,CKost/Authorization,kazunobu-fujii/xv6,imagine4077/xv6-public,Royvaknin29/OS_Ass1,v1ta/xv6,pablogventura/xv6-public,garzon/xv6,liadgi/os163,UIKit0/Xv6,UIKit0/xv6-1,liyinhgqw/xv6,HugoTian/xv6,pekopeko1/xv6-code,gnudeep/xv6,jsommers/xv6-public,PINK-FL0YD/xv6-public,wangxiayang/xv6,louisje/xv6,sdimitro/xv6,chrisdew/xv6,SanchayanMaity/xv6-cs450,arcbbb/xv6,5kg/xv6,galbenor/os162-4,HawxChen/Offical-Version-xv6,ThomasDq/xv6OS,jgome043/tearos,orenherman/xv6-clone,aquamme/xv6,xv6-jp/xv6,SanchayanMaity/xv6-cs450,myl2821/xv6-fork,juroland/xv6,AskDrCatcher/xv6,tlerea1/xv6,RicardoParizotto/xv6---stride-scheduling,howerj/xv6,Y-liulian/xv6-public,bngabonziza/xv6-public,eewayhsu/xv6,rlok3000/xv6,johnson-li/xv6-homework,garzon/xv6-public,preshshah/xv6,OrangeTide/xv6-public,arturosevilla/xv6-turi,shining-yang/xv6,aquamme/xv6,nomadium/xv6,chrisdew/xv6,khalily/xv6,penguiner/xv6,ckkashyap/xv6,gco/xv6,khalily/xv6,GautamV/xv6,lishuwnc/Xv6,s-rah/xv6-permissions,nwolovick/xv6-public,galbenor/os162-4,jsommers/xv6-public,codelabs-ch/xv6-muen,sdharan/xv6-rcu,xujunhai1991/xv6,i/xv6,rafamanzo/ep2-so-xv6,sdharan/xv6-rcu,preshshah/xv6,f13mash/xv6,justodiaz/xv6,xv6-jp/xv6,ZheyuJin/xv6_reading,run/xv6,HugoTian/xv6,reutz19/xv6_ass4,avana002/xv6,shtyd/xv6-lua,konyavic/xv6,voytovichs/xv6-public,forwchen/xv6,rafamanzo/ep4-so,baboofei/v6rt,svdamani/xv6,meilank/CS416-hw1,sometimesfood/xv6,Raysmond/xv6,MrHohn/CS-OperatingSystem-hw3,phf/xv6-public,msyksphinz/xv6-mips,kazunobu-fujii/xv6,bngabonziza/xv6-1,pekopeko1/xv6,arajago6/Axv6_One,BMJHayward/xv6-public,techno/xv6-mist32,siddharthv/xv6,wkatsak/xv6,arturosevilla/xv6-turi,danluu/Xv6,guilleiguaran/xv6,lord021/Assignment1,lishuwnc/Xv6,f13mash/xv6,lorenzo-stoakes/haxv6,meilank/CS416-hw2,RicardoParizotto/xv6---stride-scheduling,liorderei/OS_Class,nwolovick/xv6-public,baboofei/v6rt,roygoldman/xv6-sem,ckkashyap/xv6,ShakhMoves/Shakh6,bngabonziza/xv6,arcbbb/xv6,bohaoist/xv6,junxu/xv6,supdizh/clean_xv6,f13mash/xv6,orenherman/xv6-clone,nwf/xv6-public,rajma996/xv6,descent/xv6,MrHohn/cs518hw3,williamsandrew/xv6,firstblade/xv6,pelhamnicholas/xv6,bowlofstew/sv6,tehgeekmeister/xv6