dind: stop attempting to cache images during build
dind: stop attempting to cache images during build

Under the assumption that a pulled image would populate the docker build
cache, dind was previously capable of pulling a cached image in the
interests of minimizing the time to build the dind image.  Since this
assumption was incorrect, this change removes that capability.

mrogers950/origin,bparees/origin,rhcarvalho/origin,dgoodwin/origin,danmcp/origin,dobbymoodge/origin,PI-Victor/origin,sspeiche/origin,stevekuznetsov/origin,tiwillia/origin,chlunde/origin,legionus/origin,sgallagher/origin,kargakis/origin,markllama/origin,jprukner/origin,jim-minter/origin,imcsk8/origin,fabianofranz/origin,fabianofranz/origin,soltysh/origin,liangxia/origin,ramr/origin,louyihua/origin,pweil-/origin,zhaosijun/origin,pmorie/origin,nhr/origin,coreydaley/origin,sgallagher/origin,nak3/origin,rhamilto/origin,jwhonce/origin,smarterclayton/origin,raffaelespazzoli/origin,jwhonce/origin,kargakis/origin,elyscape/origin,soltysh/origin,jdnieto/origin,linzhaoming/origin,hroyrh/origin,deads2k/origin,ramr/origin,childsb/origin,rhuss/origin,elyscape/origin,csrwng/origin,maxamillion/origin,rhcarvalho/origin,aveshagarwal/origin,gabemontero/origin,stevekuznetsov/origin,rhcarvalho/origin,legionus/origin,ravisantoshgudimetla/origin,marun/origin,pravisankar/origin,robertol/origin,tiwillia/origin,arilivigni/origin,mdshuai/origin,mkumatag/origin,matthyx/origin,jeremyeder/origin,linzhaoming/origin,ingvagabund/origin,linearregression/origin,detiber/origin,jeffvance/origin,jprukner/origin,hferentschik/origin,mdshuai/origin,php-coder/origin,tracyrankin/origin,knobunc/origin,sallyom/origin,louyihua/origin,gabemontero/origin,juanvallejo/origin,chmouel/origin,rhcarvalho/origin,pravisankar/origin,goern/origin,tnozicka/origin,linearregression/origin,jpeeler/origin,juanvallejo/origin,rajatchopra/origin,sg00dwin/origin,dinhxuanvu/origin,PI-Victor/origin,miminar/origin,childsb/origin,gruiz17/origin,jdnieto/origin,rhuss/origin,chlunde/origin,simo5/origin,dcbw/origin,danwinship/origin,legionus/origin,hroyrh/origin,ingvagabund/origin,smarterclayton/origin,rajatchopra/origin,juanvallejo/origin,wanghaoran1988/origin,dmage/origin,pravisankar/origin,eparis/origin,maxamillion/origin,jwhonce/origin,liangxia/origin,ryanj/origin,tagoh/origin,pecameron/origin,jeremyeder/origin,ncdc/origin,sallyom/origin,liggitt/origin,spadgett/origin,rootfs/origin,jupierce/origin,liggitt/origin,dcbw/origin,simo5/origin,kargakis/origin,mdshuai/origin,sspeiche/origin,sjug/origin,marun/origin,php-coder/origin,robertol/origin,aveshagarwal/origin,rhamilto/origin,Miciah/origin,jprukner/origin,pweil-/origin,fabianofranz/origin,deads2k/origin,tracyrankin/origin,danwinship/origin,jwhonce/origin,ironcladlou/origin,danmcp/origin,smarterclayton/origin,tagoh/origin,danmcp/origin,wjiangjay/origin,robertol/origin,childsb/origin,rajatchopra/origin,tiwillia/origin,matthyx/origin,liangxia/origin,abutcher/origin,gashcrumb/origin,spadgett/origin,tracyrankin/origin,detiber/origin,arilivigni/origin,akram/origin,pecameron/origin,childsb/origin,nak3/origin,pravisankar/origin,maleck13/origin,sspeiche/origin,sjug/origin,ironcladlou/origin,rhuss/origin,aveshagarwal/origin,nhr/origin,legionus/origin,ryanj/origin,rhamilto/origin,pweil-/origin,hferentschik/origin,dcbw/origin,adelton/origin,sgallagher/origin,gruiz17/origin,PI-Victor/origin,luciddreamz/origin,dobbymoodge/origin,pmorie/origin,ramr/origin,ravisantoshgudimetla/origin,goern/origin,kargakis/origin,wanghaoran1988/origin,rchicoli/openshift-origin,xiuwang/origin,jprukner/origin,rootfs/origin,liangxia/origin,dinhxuanvu/origin,ryanj/origin,arilivigni/origin,danwinship/origin,tracyrankin/origin,aveshagarwal/origin,jsafrane/origin,jim-minter/origin,mrogers950/origin,liangxia/origin,tnozicka/origin,childsb/origin,detiber/origin,sdminonne/origin,mdshuai/origin,jwhonce/origin,deads2k/origin,goern/origin,dgoodwin/origin,jpeeler/origin,inlandsee/origin,robertol/origin,openshift/origin,markllama/origin,linzhaoming/origin,danwinship/origin,willmtemple/origin,imcsk8/origin,thrasher-redhat/origin,detiber/origin,gashcrumb/origin,tagoh/origin,legionus/origin,maxamillion/origin,mfojtik/origin,ncdc/origin,PI-Victor/origin,mdshuai/origin,jpeeler/origin,rootfs/origin,pravisankar/origin,marun/origin,jprukner/origin,tdawson/origin,chlunde/origin,spadgett/origin,ravisantoshgudimetla/origin,louyihua/origin,stevekuznetsov/origin,adelton/origin,linzhaoming/origin,gruiz17/origin,simo5/origin,adelton/origin,juanvallejo/origin,dgoodwin/origin,gruiz17/origin,xiuwang/origin,openshift/origin,enj/origin,bparees/origin,tnozicka/origin,thrasher-redhat/origin,Miciah/origin,rrati/origin,ryanj/origin,rhuss/origin,wanghaoran1988/origin,miminar/origin,rhuss/origin,dcbw/origin,raffaelespazzoli/origin,wjiangjay/origin,jsafrane/origin,smarterclayton/origin,dcbw/origin,gabemontero/origin,anpingli/origin,anpingli/origin,maleck13/origin,pecameron/origin,liangxia/origin,knobunc/origin,sgallagher/origin,luciddreamz/origin,sspeiche/origin,JacobTanenbaum/origin,gashcrumb/origin,thrasher-redhat/origin,imcsk8/origin,akram/origin,smarterclayton/origin,juanvallejo/origin,markllama/origin,ramr/origin,maleck13/origin,inlandsee/origin,jeremyeder/origin,elyscape/origin,linzhaoming/origin,rhamilto/origin,adelton/origin,ryanj/origin,rajatchopra/origin,php-coder/origin,knobunc/origin,nak3/or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