Remove unused struct
Remove unused struct

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