Remove rpc error when shut down daemon
Remove rpc error when shut down daemon

RPC connection closing error will be reported every time we shutdown
daemon, this error is expected, so we should remove this error to avoid
confusion to user.

Signed-off-by: Zhang Wei <14976e959b2860fb06a3c1edbdb1945a4e11b8b5@huawei.com>

crosbymichael/docker,tklauser/docker,anweiss/docker.github.io,madhanrm/docker,sarnautov/moby,jimjag/docker,londoncalling/docker.github.io,jlhawn/docker,jhorwit2/docker,errordeveloper/docker,zhuguihua/docker,afein/docker,scotttlin/docker,danix800/docker.github.io,troy0820/docker.github.io,prertik/docker,coreos/docker,shhsu/docker,pecameron/docker,shubheksha/docker.github.io,YuPengZTE/docker,gjaskiewicz/moby,jongiddy/docker,qudongfang/docker,rancher/docker,paralin/docker,kunalkushwaha/docker,anweiss/docker.github.io,willmtemple/docker,laijs/moby,BSWANG/denverdino.github.io,jwhonce/docker,tonistiigi/docker,mtesselH/docker,estesp/docker,jongiddy/docker,thtanaka/docker,sheimi/docker,tmp6154/docker,stevvooe/docker,tagomoris/docker,dongjoon-hyun/docker,yosifkit/docker,sunyuan3/docker,trebonian/docker,SvenDowideit/docker,mtanlee/docker,mike1729/docker,paralin/docker,JimGalasyn/docker.github.io,xuxinkun/docker,13W/docker,dsau/docker,brahmaroutu/docker,shishir-a412ed/docker,KarthikNayak/docker,alexisbellido/docker.github.io,johnstep/docker.github.io,tophj-ibm/moby,rremer/moby,danyalKhaliq10p/moby,Tenk42/docker,tophj-ibm/moby,Mokolea/docker,phiroict/docker,pradipd/moby,sfsmithcha/docker,resin-io/docker,ibuildthecloud/docker,anujbahuguna/docker,phiroict/docker,jimjag/docker,kolyshkin/docker,yp-engineering/docker,mixja/docker,sarnautov/moby,SvenDowideit/docker,gigidwan/docker,bearstech/moby,q384566678/docker,mahak/docker,HuKeping/docker,haveatry/docker,sterchelen/docker,dsau/docker,dsheets/moby,aduermael/docker.github.io,wenchma/docker,PatrickLang/moby,dims/docker,mtesselH/docker,menglingwei/denverdino.github.io,qudongfang/docker,kunalkushwaha/docker,tagomoris/docker,stainboy/docker,dmcgowan/docker,rhardih/docker,mstanleyjones/docker,xiaods/docker,catinthesky/docker,dgageot/docker,menglingwei/denverdino.github.io,trebonian/docker,tagomoris/docker,pecameron/docker,catinthesky/docker,rhatdan/storage,cr7pt0gr4ph7/docker,justyntemme/docker,Mashimiao/docker,ffoysal/docker,imkin/moby,sean-jc/docker,imkin/moby,darrenstahlmsft/moby,gjaskiewicz/moby,splunk/docker,dims/docker,afein/docker,isubuz/docker,sterchelen/docker,YuPengZTE/docker,nghiant2710/docker,thaJeztah/docker.github.io,jzwlqx/denverdino.github.io,sanscontext/docker.github.io,HuKeping/docker,sanjeo/docker,ColinHebert/docker,johnstep/moby-moby,joeuo/docker.github.io,KarthikNayak/docker,13W/docker,BenHall/docker,mixja/docker,joaofnfernandes/docker.github.io,docker/docker.github.io,mahak/docker,q384566678/docker,DoraALin/docker,alfred-landrum/docker,asbjornenge/docker,dperny/docker,estesp/docker,gnailuy/docker,LaynePeng/docker,shubheksha/docker.github.io,fcrisciani/docker,michelvocks/docker,JMesser81/docker,danyalKhaliq10p/moby,bluebreezecf/docker,shin-/docker.github.io,nghiant2710/docker,xiaods/docker,cyphar/docker,rremer/moby,menglingwei/denverdino.github.io,darrenstahlmsft/moby,tonistiigi/docker,djs55/docker,noxiouz/docker,xiekeyang/docker,londoncalling/docker.github.io,docker/docker.github.io,cpuguy83/docker,moby/moby,Tenk42/docker,alexisbellido/docker.github.io,mgoelzer/docker,pradipd/moby,thaJeztah/docker,madhanrm/docker,msabansal/docker,DoraALin/docker,containers/storage,flavio/docker,flavio/docker,michelvocks/docker,liaoqingwei/docker,pramodhkp/moby,lixiaobing1/docker,flavio/docker,jlhawn/docker,POLJM242/docker,mkumatag/docker,charleswhchan/docker,maxamillion/docker,xiekeyang/docker,rancher/docker,gigidwan/docker,sean-jc/docker,toli/docker,Tenk42/docker,BenHall/docker,flavio/docker,nawawi/docker,kerneltime/docker,Syntaxide/docker,JimGalasyn/docker.github.io,amatsus/docker,YuPengZTE/docker,ripcurld0/moby,thaJeztah/docker.github.io,sdurrheimer/docker,bluebreezecf/docker,x1022as/docker,michael-holzheu/docker,docker/docker.github.io,gdevillele/docker.github.io,joeuo/docker.github.io,bdwill/docker.github.io,POLJM242/docker,HuKeping/docker,dgageot/docker,scotttlin/docker,charleszheng44/moby,joeuo/docker.github.io,nalind/docker,JimGalasyn/docker.github.io,nawawi/docker,rancher/docker,hypriot/docker,BSWANG/denverdino.github.io,Syntaxide/docker,cr7pt0gr4ph7/docker,TheBigBear/docker,kerneltime/docker,sdurrheimer/docker,cloudflare/docker,wenchma/docker,bfirsh/docker,troy0820/docker.github.io,johnstep/docker.github.io,projectatomic/docker,Syntaxide/docker,londoncalling/docker.github.io,jvanz/docker,haveatry/docker,duglin/docker,jimjag/docker,unclejack/docker,londoncalling/docker.github.io,danix800/docker.github.io,Ramzec/docker,justyntemme/docker,tklauser/docker,sanscontext/docker.github.io,twaugh/docker,rhatdan/docker,AkihiroSuda/docker,brahmaroutu/docker,HideoYamauchi/docker,kencochrane/docker,14rcole/docker,charleszheng44/moby,dsau/docker,yummypeng/docker,willmtemple/docker,anweiss/docker.github.io,joaofnfernandes/docker.github.io,thaJeztah/docker.github.io,noxiouz/docker,joeuo/docker.github.io,Altiscale/docker,bdwill/docker.github.io,dmcgowan/docker,moby/moby,rremer/moby,kolyshkin/docker,konstruktoid/docker-upstream,stainboy/docker,konstruktoid/docker-upstream,prertik/do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tworx/docker,jameszhan/docker,fcrisciani/docker,danyalKhaliq10p/moby,errordeveloper/docker,johnstep/moby-moby,shubheksha/docker.github.io,Mokolea/docker,laijs/docker,hqhq/moby,lixiaobing1/docker,BenHall/docker,tophj-ibm/docker,aduermael/docker.github.io,justyntemme/docker,lixiaobing10051267/docker,moxiegirl/docker,zhuguihua/docker,miminar/docker,gjaskiewicz/moby,nalind/docker,alfred-landrum/docker,toli/docker,stevvooe/docker,KingEmet/docker,danix800/docker.github.io,sheimi/docker,jthelin/docker,laijs/docker,sanscontext/docker.github.io,bonczj/moby-json-file-logger,pecameron/docker,whuwxl/docker,tkopczynski/docker,twaugh/docker,kerneltime/docker,asbjornenge/docker,miminar/docker,dmcgowan/docker,lixiaobing1/docker,erikh/docker,yasiramin10p/moby,docker-zh/docker.github.io,gdevillele/docker.github.io,crosbymichael/docker,denverdino/denverdino.github.io,gschaetz/moby,joaofnfernandes/docker.github.io,shhsu/docker,mikedougherty/docker,mikedougherty/docker,tianon/docker,mohmost12/docker,laijs/docker,dsheets/moby,AkihiroSuda/docker,bonczj/moby-json-file-logger,charleszheng44/moby,paralin/docker,dongjoon-hyun/docker,bfirsh/docker,vdemeester/docker,jameszhan/docker,troy0820/docker.github.io,dperny/docker,sunyuan3/docker,thaJeztah/docker,Morsicus/docker,rhardih/docker,rhatdan/docker,xuxinkun/docker,naveed-jamil-tenpearls/moby,jlebon/docker,LuisBosquez/docker.github.io,portworx/docker,naveed-jamil-tenpearls/moby,14rcole/docker,endophage/docker,yosifkit/docker,mtrmac/docker,shhsu/docker,splunk/docker,konstruktoid/docker-upstream,tianon/docker,endophage/docker,kolyshkin/moby,dsheets/moby,moby/moby,kencochrane/docker,scotttlin/docker,ajaymdesai/docker,resin-io/docker,kunalkushwaha/docker,msabansal/docker,denverdino/docker.github.io,jthelin/docker,msabansal/docker,13W/docker,eskaaren/docker,konstruktoid/docker-1,laijs/moby,jameszhan/docker,JimGalasyn/docker.github.io,dnephin/docker,dnephin/docker,cyphar/docker,sean-jc/docker,ajaymdesai/docker,amatsus/docker,portworx/docker,bdwill/docker.github.io,docker/docker,amatsus/docker,jhorwit2/docker,tklauser/docker,moul/docker,abhinavdahiya/docker,hypriot/docker,PatrickLang/moby,michael-holzheu/docker,nalind/docker,LuisBosquez/docker.github.io,akira-baruah/docker,containers/storage,sdurrheimer/docker,diogomonica/docker,yasiramin10p/moby,errordeveloper/docker,mahak/docker,qudongfang/docker,duglin/docker,konstruktoid/docker-1,tophj-ibm/moby,isubuz/docker,SvenDowideit/docker,konstruktoid/docker-1,mikebrow/docker,raja-sami-10p/moby,troy0820/docker.github.io,erikstmartin/docker,13W/docker,denverdino/denverdino.github.io,moby/moby,moypray/docker,liaoqingwei/docker,rhatdan/storage,denverdino/denverdino.github.io,docker/docker.github.io,catinthesky/docker,johnstep/docker.github.io,mike1729/docker,kolyshkin/moby,jimjag/docker,brahmaroutu/docker,PatrickLang/moby,ndeloof/docker,13W/docker,sarnautov/moby,yp-engineering/docker,prertik/docker,imkin/moby,akira-baruah/docker,denverdino/denverdino.github.io,thaJeztah/docker.github.io,medallia/docker,Ramzec/docker,xuxinkun/docker,shin-/docker.github.io,diogomonica/docker,cloudflare/docker,lixiaobing10051267/docker,ripcurld0/moby,phiroict/docker,unclejack/docker,eskaaren/docker,mahak/docker,allencloud/docker,trebonian/docker,mtanlee/docker,HideoYamauchi/docker,gnailuy/docker,alfred-landrum/docker,bfirsh/docker,djs55/docker,cpuguy83/docker,harche/docker,xiekeyang/docker,bearstech/moby,srust/docker,docker-zh/docker.github.io,bearstech/moby,denverdino/denverdino.github.io,noironetworks/docker,tmp6154/docker,ajaymdesai/docker,gnailuy/docker,hypriot/docker,miminar/docker,rillig/docker.github.io,crosbymichael/docker,justincormack/docker,mixja/docker,phiroict/docker,djs55/docker,medallia/docker,jwhonce/docker,resin-io/docker,containers/storage,maxamillion/docker,thtanaka/docker