removed unused const in config.go
removed unused const in config.go

Signed-off-by: Nirmal Mehta <33169aef60b7e7e3a6c62d156c6aee40e9e1858e@gmail.com>

justyntemme/docker,aduermael/docker.github.io,thaJeztah/docker,jameszhan/docker,projectatomic/docker,dnephin/docker,nghiant2710/docker,sfsmithcha/docker,lixiaobing1/docker,LuisBosquez/docker.github.io,rremer/moby,phiroict/docker,kojiromike/docker,alfred-landrum/docker,cpuguy83/docker,whuwxl/docker,KingEmet/docker,bluebreezecf/docker,dgageot/docker,akira-baruah/docker,kojiromike/docker,akira-baruah/docker,anweiss/docker.github.io,mgoelzer/docker,jhorwit2/docker,scotttlin/docker,miminar/docker,JMesser81/docker,bearstech/moby,KarthikNayak/docker,konstruktoid/docker-upstream,dnephin/docker,phiroict/docker,dims/docker,tmp6154/docker,asbjornenge/docker,yummypeng/docker,noironetworks/docker,yosifkit/docker,ffoysal/docker,flavio/docker,pramodhkp/moby,djs55/docker,fcrisciani/docker,medallia/docker,coreos/docker,phiroict/docker,tonistiigi/docker,allencloud/docker,michelvocks/docker,troy0820/docker.github.io,xiaods/docker,Morsicus/docker,Ramzec/docker,mtesselH/docker,paralin/docker,thtanaka/docker,thaJeztah/docker,wenchma/docker,alexisbellido/docker.github.io,sanjeo/docker,jongiddy/docker,toli/docker,jzwlqx/denverdino.github.io,amatsus/docker,alfred-landrum/docker,tophj-ibm/docker,shubheksha/docker.github.io,tonistiigi/docker,yongtang/docker,BSWANG/denverdino.github.io,sterchelen/docker,mtrmac/docker,erikh/docker,johnstep/docker.github.io,sanscontext/docker.github.io,ajaymdesai/docker,tklauser/docker,PatrickLang/moby,alexisbellido/docker.github.io,moypray/docker,ndeloof/docker,xiekeyang/docker,sterchelen/docker,Ramzec/docker,fcrisciani/docker,scotttlin/docker,laijs/docker,nawawi/docker,dccurtis/docker,darrenstahlmsft/docker,charleszheng44/moby,willmtemple/docker,afein/docker,darrenstahlmsft/moby,shishir-a412ed/docker,KingEmet/docker,trebonian/docker,nalind/docker,flavio/docker,shishir-a412ed/docker,anweiss/docker.github.io,jwhonce/docker,thaJeztah/docker,projectatomic/docker,xuxinkun/docker,eskaaren/docker,mikebrow/docker,cloudflare/docker,bonczj/moby-json-file-logger,dongjoon-hyun/docker,noxiouz/docker,estesp/docker,tkopczynski/docker,tmp6154/docker,mtesselH/docker,Ramzec/docker,HuKeping/docker,dims/docker,jimjag/docker,dongjoon-hyun/docker,catinthesky/docker,danyalKhaliq10p/moby,docker/docker.github.io,docker-zh/docker.github.io,ibuildthecloud/docker,brahmaroutu/docker,charleszheng44/moby,noxiouz/docker,danix800/docker.github.io,hqhq/moby,HuKeping/docker,sanscontext/docker.github.io,denverdino/docker.github.io,coreos/docker,jthelin/docker,denverdino/docker.github.io,mtanlee/docker,haveatry/docker,ColinHebert/docker,miminar/docker,bonczj/moby-json-file-logger,docker-zh/docker.github.io,kencochrane/docker,trebonian/docker,coreos/docker,phiroict/docker,londoncalling/docker.github.io,jwhonce/docker,flavio/docker,ibuildthecloud/docker,ibuildthecloud/docker,danyalKhaliq10p/moby,kolyshkin/moby,rhatdan/storage,djs55/docker,Tenk42/docker,imkin/moby,ndeloof/docker,YuPengZTE/docker,tianon/docker,joaofnfernandes/docker.github.io,stevvooe/docker,londoncalling/docker.github.io,x1022as/docker,moby/moby,trebonian/docker,qudongfang/docker,medallia/docker,menglingwei/denverdino.github.io,zhuguihua/docker,yummypeng/docker,mtesselH/docker,denverdino/denverdino.github.io,icaoweiwei/docker,noxiouz/docker,errordeveloper/docker,laijs/moby,Mokolea/docker,rhatdan/docker,cloudflare/docker,tagomoris/docker,bdwill/docker.github.io,msabansal/docker,dmcgowan/docker,wenchma/docker,hypriot/docker,docker-zh/docker.github.io,coolljt0725/docker,moul/docker,mikebrow/docker,containers/storage,cyphar/docker,shin-/docker.github.io,jongiddy/docker,lixiaobing1/docker,whuwxl/docker,kunalkushwaha/docker,menglingwei/denverdino.github.io,michael-holzheu/docker,q384566678/docker,imkin/moby,rancher/docker,isubuz/docker,sanjeo/docker,liaoqingwei/docker,dsheets/moby,tkopczynski/docker,mikedougherty/docker,erikstmartin/docker,nghiant2710/docker,docker-zh/docker.github.io,BSWANG/denverdino.github.io,icaoweiwei/docker,paralin/docker,moby/moby,amatsus/docker,tophj-ibm/moby,raja-sami-10p/moby,resin-io/docker,kunalkushwaha/docker,tophj-ibm/docker,xiekeyang/docker,mtrmac/docker,joaofnfernandes/docker.github.io,pradipd/moby,yp-engineering/docker,liaoqingwei/docker,mtrmac/docker,pramodhkp/moby,thaJeztah/docker.github.io,allencloud/docker,anweiss/docker.github.io,denverdino/docker.github.io,scotttlin/docker,PatrickLang/moby,Ramzec/docker,joeuo/docker.github.io,menglingwei/denverdino.github.io,hqhq/moby,pecameron/docker,srust/docker,mike1729/docker,ibuildthecloud/docker,tagomoris/docker,mkumatag/docker,nalind/docker,gschaetz/moby,jvanz/docker,tophj-ibm/docker,joeuo/docker.github.io,dsheets/moby,prertik/docker,qudongfang/docker,endophage/docker,lixiaobing10051267/docker,konstruktoid/docker-upstream,mahak/docker,konstruktoid/docker-upstream,pecameron/docker,yp-engineering/docker,mike1729/docker,kencochrane/docker,harche/docker,joeuo/docker.github.io,duglin/docker,tkopczynski/docker,xiaods/docker,laijs/docker,cr7pt0gr4ph7/docker,shin-/docker.github.io,paralin/docker,thtanaka/docker,nawawi/docker,raja-sami-10p/moby,mtanlee/docker,kojiromike/docker,sfsmithcha/docker,harche/docker,darrenstahlmsft/docker,allencloud/docker,13W/docker,sterchelen/docker,aduermael/docker.github.io,ColinHebert/docker,jlhawn/docker,gnailuy/docker,dims/docker,menglingwei/denverdino.github.io,troy0820/docker.github.io,rhatdan/docker,diogomonica/docker,harche/docker,mixja/docker,xuxinkun/docker,whuwxl/docker,tophj-ibm/moby,resin-io/docker,maxamillion/docker,Syntaxide/docker,rancher/docker,mstanleyjones/docker,docker/docker.github.io,haveatry/docker,catinthesky/docker,jimjag/docker,mgoelzer/docker,moby/moby,14rcole/docker,mixja/docker,ripcurld0/moby,gschaetz/moby,alfred-landrum/docker,rillig/docker.github.io,jwhonce/docker,imkin/moby,twaugh/docker,yasiramin10p/moby,amatsus/docker,yp-engineering/docker,asbjornenge/docker,rremer/moby,dmcgowan/docker,ndeloof/docker,willmtemple/docker,aduermael/docker.github.io,docker/docker.github.io,stevvooe/docker,docker/docker.github.io,srust/docker,jzwlqx/denverdino.github.io,Tenk42/docker,bearstech/moby,thaJeztah/docker,dsheets/moby,prertik/docker,shin-/docker.github.io,kolyshkin/moby,Morsicus/docker,charleswhchan/docker,thaJeztah/docker.github.io,johnstep/docker.github.io,mixja/docker,yongtang/docker,mtanlee/docker,jameszhan/docker,projectatomic/docker,laijs/moby,rillig/docker.github.io,JimGalasyn/docker.github.io,vdemeester/docker,rillig/docker.github.io,kerneltime/docker,troy0820/docker.github.io,JMesser81/docker,denverdino/denverdino.github.io,moby/moby,nawawi/docker,portworx/docker,erikstmartin/docker,mkumatag/docker,kerneltime/docker,gdevillele/docker.github.io,konstruktoid/docker-1,johnstep/docker.github.io,splunk/docker,jameszhan/docker,cpuguy83/docker,thaJeztah/docker.github.io,cyphar/docker,rillig/docker.github.io,erikh/docker,dgageot/docker,cr7pt0gr4ph7/docker,bdwill/docker.github.io,tklauser/docker,mahak/docker,gnailuy/docker,ColinHebert/docker,laijs/moby,rhatdan/storage,hypriot/docker,gigidwan/docker,raja-sami-10p/moby,catinthesky/docker,joeuo/docker.github.io,bluebreezecf/docker,rhardih/docker,xuxinkun/docker,HuKeping/docker,johnstep/moby-moby,jzwlqx/denverdino.github.io,moul/docker,naveed-jamil-tenpearls/moby,KarthikNayak/docker,twaugh/docker,Syntaxide/docker,vdemeester/docker,mikedougherty/docker,gnailuy/docker,mgoelzer/docker,abhinavdahiya/docker,dccurtis/docker,Shopify/docker,shin-/docker.github.io,shubheksha/docker.github.io,bonczj/moby-json-file-logger,Shopify/docker,sdurrheimer/docker,ripcurld0/moby,docker/docker,mohmost12/docker,kunalkushwaha/docker,BSWANG/denverdino.github.io,JimGalasyn/docker.github.io,AkihiroSuda/docker,tianon/docker,jhorwit2/docker,YuPengZTE/docker,rremer/moby,naveed-jamil-tenpearls/moby,konstruktoid/docker-upstream,dongjoon-hyun/docker,eskaaren/docker,anweiss/docker.github.io,estesp/docker,dsau/docker,crosbymichael/docker,jzwlqx/denverdino.github.io,SvenDowideit/docker,ffoysal/docker,kolyshkin/docker,estesp/docker,BSWANG/denverdino.github.io,LuisBosquez/docker.github.io,johnstep/docker.github.io,docker/docker,gdevillele/docker.github.io,gdevillele/docker.github.io,maxamillion/docker,laijs/docker,djs55/docker,denverdino/denverdino.github.io,kolyshkin/docker,gigidwan/docker,alexisbellido/docker.github.io,gjaskiewicz/moby,mike1729/docker,ffoysal/docker,stainboy/docker,kencochrane/docker,nalind/docker,shishir-a412ed/docker,michelvocks/docker,dperny/docker,moul/docker,jlhawn/docker,brahmaroutu/docker,madhanrm/docker,pramodhkp/moby,afein/docker,tonistiigi/docker,troy0820/docker.github.io,yummypeng/docker,moypray/docker,AkihiroSuda/docker,aduermael/docker.github.io,thaJeztah/docker.github.io,bearstech/moby,Shopify/docker,zhuguihua/docker,crosbymichael/docker,dsau/docker,justincormack/docker,michael-holzheu/docker,x1022as/docker,crosbymichael/docker,abhinavdahiya/docker,sarnautov/moby,tmp6154/docker,SvenDowideit/docker,JimGalasyn/docker.github.io,rhardih/docker,cpuguy83/docker,qudongfang/docker,HideoYamauchi/docker,liaoqingwei/docker,ajaymdesai/docker,unclejack/docker,alexisbellido/docker.github.io,POLJM242/docker,diogomonica/docker,unclejack/docker,mkumatag/docker,dsau/docker,bluebreezecf/docker,nalind/docker,lixiaobing10051267/docker,michelvocks/docker,yosifkit/docker,paralin/docker,gschaetz/moby,AkihiroSuda/docker,zhuguihua/docker,dnephin/docker,erikh/docker,jvanz/docker,darrenstahlmsft/moby,yasiramin10p/moby,madhanrm/docker,denverdino/denverdino.github.io,sanscontext/docker.github.io,stainboy/docker,wenchma/docker,jlebon/docker,cpuguy83/docker,errordeveloper/docker,moul/docker,brahmaroutu/docker,13W/docker,justincormack/docker,jimjag/docker,sfsmithcha/docker,errordeveloper/docker,q384566678/docker,mikedougherty/docker,noironetworks/docker,jhorwit2/docker,Syntaxide/docker,jvanz/docker,gjaskiewicz/moby,gnailuy/docker,johnstep/moby-moby,joaofnfernandes/docker.github.io,mstanleyjones/docker,POLJM242/docker,tophj-ibm/moby,dgageot/docker,docker-zh/docker.github.io,eskaaren/docker,shhsu/docker,shubheksha/docker.github.io,sanscontext/docker.github.io,londoncalling/docker.github.io,jlebon/docker,yongtang/docker,lixiaobing1/docker,KingEmet/docker,pradipd/moby,ajaymdesai/docker,containers/storage,mahak/docker,toli/docker,LuisBosquez/docker.github.io,BSWANG/denverdino.github.io,jimjag/docker,stainboy/docker,msabansal/docker,bdwill/docker.github.io,duglin/docker,hqhq/moby,twaugh/docker,ripcurld0/moby,stevvooe/docker,thaJeztah/docker.github.io,KarthikNayak/docker,yosifkit/docker,portworx/docker,konstruktoid/docker-1,sarnautov/moby,toli/docker,gigidwan/docker,jthelin/docker,vdemeester/docker,splunk/docker,sdurrheimer/docker,mikebrow/docker,rhatdan/storage,justyntemme/docker,resin-io/docker,hypriot/docker,bearstech/moby,asbjornenge/docker,naveed-jamil-tenpearls/moby,danix800/docker.github.io,PatrickLang/moby,Morsicus/docker,gdevillele/docker.github.io,gjaskiewicz/moby,portworx/docker,jongiddy/docker,darrenstahlmsft/moby,willmtemple/docker,sdurrheimer/docker,medallia/docker,jzwlqx/denverdino.github.io,jlhawn/docker,yosifkit/docker,13W/docker,erikstmartin/docker,jlebon/docker,nghiant2710/docker,mohmost12/docker,kolyshkin/moby,LuisBosquez/docker.github.io,xiekeyang/docker,isubuz/docker,charleszheng44/moby,justyntemme/docker,gdevillele/docker.github.io,bdwill/docker.github.io,maxamillion/docker,q384566678/docker,YuPengZTE/docker,dmcgowan/docker,isubuz/docker,docker/docker,pecameron/docker,LuisBosquez/docker.github.io,kerneltime/docker,johnstep/docker.github.io,shhsu/docker,coolljt0725/docker,dperny/docker,unclejack/docker,splunk/docker,icaoweiwei/docker,ibuildthecloud/docker,dccurtis/docker,duglin/docker,anweiss/docker.github.io,denverdino/docker.github.io,londoncalling/docker.github.io,mohmost12/docker,konstruktoid/docker-1,nawawi/docker,xiaods/docker,Mokolea/docker,justincormack/docker,JMesser81/docker,mstanleyjones/docker,noironetworks/docker,yasiramin10p/moby,sanjeo/docker,endophage/docker,joeuo/docker.github.io,lixiaobing10051267/docker,michael-holzheu/docker,HideoYamauchi/docker,danyalKhaliq10p/moby,phiroict/docker,cloudflare/docker,SvenDowideit/docker,darrenstahlmsft/docker,flavio/docker,sanscontext/docker.github.io,denverdino/denverdino.github.io,haveatry/docker,tagomoris/docker,madhanrm/docker,trebonian/docker,JimGalasyn/docker.github.io,danix800/docker.github.io,pradipd/moby,Mokolea/docker,msabansal/docker,shhsu/docker,tklauser/docker,charleswhchan/docker,sarnautov/moby,londoncalling/docker.github.io,dperny/docker,fcrisciani/docker,docker/docker.github.io,prertik/docker,Mokolea/docker,JimGalasyn/docker.github.io,diogomonica/docker,alexisbellido/docker.github.io,afein/docker,Tenk42/docker,13W/docker,cyphar/docker,charleswhchan/docker,joaofnfernandes/docker.github.io,abhinavdahiya/docker,rhatdan/docker,mahak/docker,johnstep/moby-moby,cr7pt0gr4ph7/docker,14rcole/docker,bdwill/docker.github.io,joaofnfernandes/docker.github.io,shubheksha/docker.github.io,shin-/docker.github.io,AkihiroSuda/docker,denverdino/docker.github.io,miminar/docker,coolljt0725/docker,moypray/docker,shubheksha/docker.github.io,13W/docker,thtanaka/docker,danix800/docker.github.io,containers/storage,medallia/docker,HideoYamauchi/docker,rancher/docker,endophage/docker,menglingwei/denverdino.github.io,x1022as/docker,srust/docker