remove old stuff from tools/README.md
remove old stuff from tools/README.md

hstefan/grpc,muxi/grpc,y-zeng/grpc,thunderboltsid/grpc,PeterFaiman/ruby-grpc-minimal,goldenbull/grpc,matt-kwong/grpc,soltanmm/grpc,fuchsia-mirror/third_party-grpc,kumaralokgithub/grpc,ananthonline/grpc,ctiller/grpc,y-zeng/grpc,mehrdada/grpc,VcamX/grpc,grpc/grpc,y-zeng/grpc,perumaalgoog/grpc,kriswuollett/grpc,PeterFaiman/ruby-grpc-minimal,vjpai/grpc,quizlet/grpc,royalharsh/grpc,MakMukhi/grpc,perumaalgoog/grpc,a11r/grpc,sreecha/grpc,thunderboltsid/grpc,ejona86/grpc,VcamX/grpc,donnadionne/grpc,wcevans/grpc,hstefan/grpc,grani/grpc,philcleveland/grpc,jboeuf/grpc,yugui/grpc,wcevans/grpc,quizlet/grpc,kriswuollett/grpc,ncteisen/grpc,greasypizza/grpc,jtattermusch/grpc,firebase/grpc,bogdandrutu/grpc,makdharma/grpc,Vizerai/grpc,ncteisen/grpc,carl-mastrangelo/grpc,kpayson64/grpc,carl-mastrangelo/grpc,muxi/grpc,simonkuang/grpc,zhimingxie/grpc,grpc/grpc,deepaklukose/grpc,pszemus/grpc,ncteisen/grpc,fuchsia-mirror/third_party-grpc,yugui/grpc,Vizerai/grpc,mehrdada/grpc,PeterFaiman/ruby-grpc-minimal,infinit/grpc,chrisdunelm/grpc,MakMukhi/grpc,arkmaxim/grpc,Vizerai/grpc,ncteisen/grpc,vsco/grpc,podsvirov/grpc,leifurhauks/grpc,zhimingxie/grpc,sreecha/grpc,nicolasnoble/grpc,LuminateWireless/grpc,geffzhang/grpc,malexzx/grpc,ejona86/grpc,makdharma/grpc,pszemus/grpc,msmania/grpc,donnadionne/grpc,simonkuang/grpc,matt-kwong/grpc,nicolasnoble/grpc,dklempner/grpc,carl-mastrangelo/grpc,makdharma/grpc,dklempner/grpc,greasypizza/grpc,a11r/grpc,malexzx/grpc,stanley-cheung/grpc,philcleveland/grpc,geffzhang/grpc,firebase/grpc,arkmaxim/grpc,sreecha/grpc,stanley-cheung/grpc,podsvirov/grpc,baylabs/grpc,stanley-cheung/grpc,soltanmm-google/grpc,ananthonline/grpc,firebase/grpc,geffzhang/grpc,LuminateWireless/grpc,nicolasnoble/grpc,murgatroid99/grpc,yang-g/grpc,kumaralokgithub/grpc,leifurhauks/grpc,fuchsia-mirror/third_party-grpc,nicolasnoble/grpc,zhimingxie/grpc,yang-g/grpc,stanley-cheung/grpc,bogdandrutu/grpc,greasypizza/grpc,goldenbull/grpc,miselin/grpc,PeterFaiman/ruby-grpc-minimal,philcleveland/grpc,tengyifei/grpc,LuminateWireless/grpc,soltanmm/grpc,jcanizales/grpc,daniel-j-born/grpc,ncteisen/grpc,a11r/grpc,msmania/grpc,a11r/grpc,baylabs/grpc,dklempner/grpc,infinit/grpc,nicolasnoble/grpc,stanley-cheung/grpc,infinit/grpc,rjshade/grpc,pszemus/grpc,vjpai/grpc,goldenbull/grpc,royalharsh/grpc,simonkuang/grpc,adelez/grpc,royalharsh/grpc,matt-kwong/grpc,geffzhang/grpc,thunderboltsid/grpc,ipylypiv/grpc,leifurhauks/grpc,vsco/grpc,nicolasnoble/grpc,dgquintas/grpc,greasypizza/grpc,pmarks-net/grpc,wcevans/grpc,rjshade/grpc,goldenbull/grpc,hstefan/grpc,pszemus/grpc,soltanmm-google/grpc,kskalski/grpc,jboeuf/grpc,sreecha/grpc,jboeuf/grpc,firebase/grpc,Crevil/grpc,thinkerou/grpc,pszemus/grpc,apolcyn/grpc,vjpai/grpc,thunderboltsid/grpc,a11r/grpc,kpayson64/grpc,yang-g/grpc,arkmaxim/grpc,bogdandrutu/grpc,simonkuang/grpc,philcleveland/grpc,ipylypiv/grpc,greasypizza/grpc,rjshade/grpc,pszemus/grpc,philcleveland/grpc,kriswuollett/grpc,thinkerou/grpc,yang-g/grpc,goldenbull/grpc,tengyifei/grpc,baylabs/grpc,murgatroid99/grpc,tengyifei/grpc,miselin/grpc,Crevil/grpc,vsco/grpc,yang-g/grpc,apolcyn/grpc,quizlet/grpc,royalharsh/grpc,simonkuang/grpc,royalharsh/grpc,chrisdunelm/grpc,kpayson64/grpc,dklempner/grpc,chrisdunelm/grpc,jtattermusch/grpc,firebase/grpc,LuminateWireless/grpc,sreecha/grpc,VcamX/grpc,philcleveland/grpc,grani/grpc,leifurhauks/grpc,tengyifei/grpc,grpc/grpc,grpc/grpc,kskalski/grpc,hstefan/grpc,a-veitch/grpc,ncteisen/grpc,yugui/grpc,malexzx/grpc,Crevil/grpc,nicolasnoble/grpc,makdharma/grpc,msmania/grpc,pmarks-net/grpc,quizlet/grpc,stanley-cheung/grpc,PeterFaiman/ruby-grpc-minimal,apolcyn/grpc,mehrdada/grpc,jcanizales/grpc,nicolasnoble/grpc,grani/grpc,deepaklukose/grpc,apolcyn/grpc,mehrdada/grpc,matt-kwong/grpc,grpc/grpc,perumaalgoog/grpc,jboeuf/grpc,greasypizza/grpc,pmarks-net/grpc,donnadionne/grpc,bogdandrutu/grpc,perumaalgoog/grpc,jcanizales/grpc,daniel-j-born/grpc,zhimingxie/grpc,ejona86/grpc,LuminateWireless/grpc,makdharma/grpc,ipylypiv/grpc,y-zeng/grpc,pmarks-net/grpc,ananthonline/grpc,dklempner/grpc,jtattermusch/grpc,wcevans/grpc,philcleveland/grpc,ctiller/grpc,deepaklukose/grpc,soltanmm-google/grpc,ctiller/grpc,arkmaxim/grpc,jboeuf/grpc,wcevans/grpc,a11r/grpc,vjpai/grpc,LuminateWireless/grpc,mehrdada/grpc,mehrdada/grpc,makdharma/grpc,vjpai/grpc,grani/grpc,baylabs/grpc,kpayson64/grpc,stanley-cheung/grpc,ipylypiv/grpc,jboeuf/grpc,yang-g/grpc,pszemus/grpc,stanley-cheung/grpc,quizlet/grpc,donnadionne/grpc,fuchsia-mirror/third_party-grpc,geffzhang/grpc,donnadionne/grpc,Vizerai/grpc,ppietrasa/grpc,miselin/grpc,MakMukhi/grpc,makdharma/grpc,deepaklukose/grpc,simonkuang/grpc,infinit/grpc,quizlet/grpc,ppietrasa/grpc,adelez/grpc,zhimingxie/grpc,daniel-j-born/grpc,arkmaxim/grpc,soltanmm-google/grpc,ananthonline/grpc,bogdandrutu/grpc,yongni/grpc,kumaralokgithub/grpc,soltanmm-google/grpc,matt-kwong/grpc,jtattermusch/grpc,kpayson64/grpc,carl-mastrangelo/grpc,soltanmm-google/grpc,ppietrasa/grpc,murgatroid99/grpc,soltanmm/grpc,pmarks-net/grpc,ejona86/grpc,donnadionne/grpc,malexzx/grpc,malexzx/grpc,podsvirov/grpc,matt-kwong/grpc,soltanmm/grpc,dgquintas/grpc,kpayson64/grpc,donnadionne/grpc,kskalski/grpc,ejona86/grpc,firebase/grpc,royalharsh/grpc,vjpai/grpc,thinkerou/grpc,hstefan/grpc,muxi/grpc,jtattermusch/grpc,kriswuollett/grpc,jboeuf/grpc,ipylypiv/grpc,carl-mastrangelo/grpc,msmania/grpc,LuminateWireless/grpc,arkmaxim/grpc,geffzhang/grpc,perumaalgoog/grpc,goldenbull/grpc,thunderboltsid/grpc,muxi/grpc,grpc/grpc,grani/grpc,thinkerou/grpc,makdharma/grpc,ctiller/grpc,MakMukhi/grpc,ananthonline/grpc,mehrdada/grpc,firebase/grpc,a-veitch/grpc,ejona86/grpc,jcanizales/grpc,dgquintas/grpc,msmania/grpc,soltanmm-google/grpc,Crevil/grpc,andrewpollock/grpc,a11r/grpc,dklempner/grpc,dgquintas/grpc,andrewpollock/grpc,kpayson64/grpc,a-veitch/grpc,chrisdunelm/grpc,leifurhauks/grpc,donnadionne/grpc,deepaklukose/grpc,kriswuollett/grpc,jcanizales/grpc,greasypizza/grpc,apolcyn/grpc,murgatroid99/grpc,jtattermusch/grpc,wcevans/grpc,thunderboltsid/grpc,kumaralokgithub/grpc,ipylypiv/grpc,grpc/grpc,sreecha/grpc,miselin/grpc,adelez/grpc,chrisdunelm/grpc,ipylypiv/grpc,fuchsia-mirror/third_party-grpc,mehrdada/grpc,deepaklukose/grpc,thunderboltsid/grpc,jcanizales/grpc,tengyifei/grpc,dgquintas/grpc,yugui/grpc,grpc/grpc,bogdandrutu/grpc,chrisdunelm/grpc,kumaralokgithub/grpc,jtattermusch/grpc,kpayson64/grpc,simonkuang/grpc,stanley-cheung/grpc,perumaalgoog/grpc,andrewpollock/grpc,Vizerai/grpc,donnadionne/grpc,muxi/grpc,dgquintas/grpc,murgatroid99/grpc,pmarks-net/grpc,chrisdunelm/grpc,grpc/grpc,bogdandrutu/grpc,podsvirov/grpc,ctiller/grpc,grpc/grpc,firebase/grpc,Vizerai/grpc,tengyifei/grpc,a-veitch/grpc,yugui/grpc,daniel-j-born/grpc,donnadionne/grpc,apolcyn/grpc,dgquintas/grpc,vsco/grpc,rjshade/grpc,fuchsia-mirror/third_party-grpc,carl-mastrangelo/grpc,chrisdunelm/grpc,podsvirov/grpc,firebase/grpc,ppietrasa/grpc,kriswuollett/grpc,kskalski/grpc,deepaklukose/grpc,royalharsh/grpc,VcamX/grpc,makdharma/grpc,thunderboltsid/grpc,greasypizza/grpc,a-veitch/grpc,vsco/grpc,jtattermusch/grpc,ctiller/grpc,jtattermusch/grpc,7anner/grpc,kskalski/grpc,arkmaxim/grpc,malexzx/grpc,rjshade/grpc,hstefan/grpc,quizlet/grpc,quizlet/grpc,pszemus/grpc,jboeuf/grpc,miselin/grpc,rjshade/grpc,kskalski/grpc,ncteisen/grpc,jboeuf/grpc,jtattermusch/grpc,Vizerai/grpc,pszemus/grpc,leifurhauks/grpc,carl-mastrangelo/grpc,rjshade/grpc,jcanizales/grpc,muxi/grpc,Crevil/grpc,baylabs/grpc,murgatroid99/grpc,a-veitch/grpc,MakMukhi/grpc,yongni/grpc,geffzhang/grpc,zhimingxie/grpc,thinkerou/grpc,rjshade/grpc,a-veitch/grpc,hstefan/grpc,adelez/grpc,dgquintas/grpc,pmarks-net/grpc,sreecha/grpc,kumaralokgithub/grpc,MakMukhi/grpc,baylabs/grpc,muxi/grpc,y-zeng/grpc,matt-kwong/grpc,apolcyn/grpc,chrisdunelm/grpc,yongni/grpc,baylabs/grpc,ppietrasa/grpc,msmania/grpc,ctiller/grpc,bogdandrutu/grpc,yongni/grpc,simonkuang/grpc,ejona86/grpc,yongni/grpc,adelez/grpc,pmarks-net/grpc,ipylypiv/grpc,dklempner/grpc,daniel-j-born/grpc,soltanmm/grpc,sreecha/grpc,PeterFaiman/ruby-grpc-minimal,Vizerai/grpc,nicolasnoble/grpc,ananthonline/grpc,pmarks-net/grpc,vjpai/grpc,simonkuang/grpc,carl-mastrangelo/grpc,ncteisen/grpc,leifurhauks/grpc,grani/grpc,infinit/grpc,mehrdada/grpc,firebase/grpc,andrewpollock/grpc,thinkerou/grpc,zhimingxie/grpc,7anner/grpc,infinit/grpc,yugui/grpc,baylabs/grpc,Vizerai/grpc,sreecha/grpc,kskalski/grpc,soltanmm-google/grpc,muxi/grpc,ctiller/grpc,stanley-cheung/grpc,tengyifei/grpc,ncteisen/grpc,VcamX/grpc,malexzx/grpc,grani/grpc,LuminateWireless/grpc,kriswuollett/grpc,zhimingxie/grpc,adelez/grpc,MakMukhi/grpc,podsvirov/grpc,stanley-cheung/grpc,nicolasnoble/grpc,jtattermusch/grpc,donnadionne/grpc,leifurhauks/grpc,PeterFaiman/ruby-grpc-minimal,zhimingxie/grpc,firebase/grpc,andrewpollock/grpc,thunderboltsid/grpc,miselin/grpc,nicolasnoble/grpc,grani/grpc,7anner/grpc,deepaklukose/grpc,podsvirov/grpc,ananthonline/grpc,andrewpollock/grpc,jboeuf/grpc,yugui/grpc,philcleveland/grpc,dgquintas/grpc,VcamX/grpc,royalharsh/grpc,yang-g/grpc,soltanmm/grpc,perumaalgoog/grpc,PeterFaiman/ruby-grpc-minimal,MakMukhi/grpc,thinkerou/grpc,vjpai/grpc,Crevil/grpc,thinkerou/grpc,dgquintas/grpc,bogdandrutu/grpc,y-zeng/grpc,malexzx/grpc,yang-g/grpc,ejona86/grpc,a-veitch/grpc,dklempner/grpc,tengyifei/grpc,muxi/grpc,muxi/grpc,daniel-j-born/grpc,sreecha/grpc,jboeuf/grpc,greasypizza/grpc,daniel-j-born/grpc,y-zeng/grpc,mehrdada/grpc,ctiller/grpc,ejona86/grpc,vsco/grpc,vsco/grpc,Crevil/grpc,carl-mastrangelo/grpc,kumaralokgithub/grpc,thinkerou/grpc,7anner/grpc,matt-kwong/grpc,soltanmm-google/grpc,wcevans/grpc,grpc/grpc,vsco/grpc,fuchsia-mirror/third_party-grpc,quizlet/grpc,ctiller/grpc,vsco/grpc,fuchsia-mirror/third_party-grpc,murgatroid99/grpc,thinkerou/grpc,ppietrasa/grpc,PeterFaiman/ruby-grpc-minimal,infinit/grpc,ananthonline/grpc,chrisdunelm/grpc,wcevans/grpc,dklempner/grpc,infinit/grpc,firebase/grpc,7anner/grpc,goldenbull/grpc,vjpai/grpc,sreecha/grpc,daniel-j-born/grpc,kumaralokgithub/grpc,ppietrasa/grpc,ejona86/grpc,stanley-cheung/grpc,ncteisen/grpc,yang-g/grpc,goldenbull/grpc,msmania/grpc,yongni/grpc,ppietrasa/grpc,pszemus/grpc,carl-mastrangelo/grpc,ananthonline/grpc,thinkerou/grpc,grpc/grpc,yongni/grpc,soltanmm/grpc,perumaalgoog/grpc,7anner/grpc,vjpai/grpc,y-zeng/grpc,yugui/grpc,7anner/grpc,ncteisen/grpc,podsvirov/grpc,ejona86/grpc,soltanmm/grpc,msmania/grpc,ctiller/grpc,carl-mastrangelo/grpc,murgatroid99/grpc,pszemus/grpc,fuchsia-mirror/third_party-grpc,kpayson64/grpc,jcanizales/grpc,goldenbull/grpc,chrisdunelm/grpc,kpayson64/grpc,philcleveland/grpc,thinkerou/grpc,rjshade/grpc,VcamX/grpc,nicolasnoble/grpc,deepaklukose/grpc,sreecha/grpc,VcamX/grpc,a-veitch/grpc,jtattermusch/grpc,adelez/grpc,leifurhauks/grpc,Crevil/grpc,Vizerai/grpc,7anner/grpc,muxi/grpc,vjpai/grpc,tengyifei/grpc,yongni/grpc,VcamX/grpc,LuminateWireless/grpc,hstefan/grpc,ejona86/grpc,yongni/grpc,apolcyn/grpc,kriswuollett/grpc,geffzhang/grpc,ctiller/grpc,donnadionne/grpc,podsvirov/grpc,fuchsia-mirror/third_party-grpc,PeterFaiman/ruby-grpc-minimal,carl-mastrangelo/grpc,a11r/grpc,matt-kwong/grpc,y-zeng/grpc,adelez/grpc,ipylypiv/grpc,a11r/grpc,msmania/grpc,mehrdada/grpc,Crevil/grpc,murgatroid99/grpc,andrewpollock/grpc,yugui/grpc,murgatroid99/grpc,kpayson64/grpc,royalharsh/grpc,geffzhang/grpc,andrewpollock/grpc,7anner/grpc,ncteisen/grpc,grani/grpc,malexzx/grpc,jboeuf/grpc,ppietrasa/grpc,Vizerai/grpc,baylabs/grpc,pszemus/grpc,miselin/grpc,kriswuollett/grpc,wcevans/grpc,hstefan/grpc,adelez/grpc,infinit/grpc,perumaalgoog/grpc,arkmaxim/grpc,MakMukhi/grpc,andrewpollock/grpc,miselin/grpc,kumaralokgithub/grpc,arkmaxim/grpc,apolcyn/grpc,kskalski/grpc,miselin/grpc,dgquintas/grpc,mehrdada/grpc,muxi/grpc,jcanizales/grpc,kskalski/grpc,daniel-j-born/grpc,soltanmm/grpc,vjpai/grpc