eviction: use previous statsFunc
eviction: use previous statsFunc

No need to use summary to create statsFunc for localStorageEviction.
Just use vals from makeSignalObservations.

Signed-off-by: Wei Fu <df4176d36abdc6fd0d966de5d5471522668de494@gmail.com>

fejta/kubernetes,chrislovecnm/kubernetes,jessfraz/kubernetes,tcnghia/kubernetes,mikebrow/kubernetes,carlory/kubernetes,fgimenez/kubernetes,warmchang/kubernetes,JacobTanenbaum/kubernetes,maciaszczykm/kubernetes,tcnghia/kubernetes,iterion/kubernetes,soltysh/kubernetes,nikhita/kubernetes,cblecker/kubernetes,PiotrProkop/kubernetes,cmluciano/kubernetes,rnaveiras/kubernetes,roberthbailey/kubernetes,johscheuer/kubernetes,thockin/kubernetes,mfojtik/kubernetes,feiskyer/kubernetes,li-ang/kubernetes,tomzhang/kubernetes,liggitt/kubernetes,humblec/kubernetes,kevin-wangzefeng/kubernetes,sdminonne/kubernetes,pires/kubernetes,jsafrane/kubernetes,maciaszczykm/kubernetes,olivierlemasle/kubernetes,sethpollack/kubernetes,wanghaoran1988/kubernetes,wanghaoran1988/kubernetes,jdef/kubernetes,nak3/kubernetes,maciaszczykm/kubernetes,xychu/kubernetes,Lion-Wei/kubernetes,rafax/kubernetes,pwittrock/kubernetes,pires/kubernetes,sethpollack/kubernetes,JacobTanenbaum/kubernetes,dims/kubernetes,shyamjvs/kubernetes,humblec/kubernetes,hex108/kubernetes,tomerf/kubernetes,openshift/kubernetes,x13n/kubernetes,chestack/kubernetes,cofyc/kubernetes,ravilr/kubernetes,luxas/kubernetes,cofyc/kubernetes,zhangmingld/kubernetes,andrewsykim/kubernetes,MHBauer/kubernetes,klaus1982/kubernetes,tpepper/kubernetes,ravisantoshgudimetla/kubernetes,ixdy/kubernetes,wongma7/kubernetes,jessfraz/kubernetes,kitt1987/kubernetes,spzala/kubernetes,saad-ali/kubernetes,yarntime/kubernetes,ingvagabund/kubernetes,nckturner/kubernetes,deads2k/kubernetes,aledbf/kubernetes,MikeSpreitzer/kubernetes,idvoretskyi/kubernetes,monopole/kubernetes,MHBauer/kubernetes,sdminonne/kubernetes,dixudx/kubernetes,du2016/kubernetes,pires/kubernetes,jsafrane/kubernetes,dixudx/kubernetes,ixdy/kubernetes,kevensen/kubernetes,dims/kubernetes,wanghaoran1988/kubernetes,iterion/kubernetes,jagosan/kubernetes,zhouhaibing089/kubernetes,GulajavaMinistudio/kubernetes,wanghaoran1988/kubernetes,alejandroEsc/kubernetes,cofyc/kubernetes,liggitt/kubernetes,xychu/kubernetes,fabriziopandini/kubernetes,klaus1982/kubernetes,lojies/kubernetes,tpepper/kubernetes,linux-on-ibm-z/kubernetes,mYmNeo/kubernetes,MHBauer/kubernetes,k82/kubernetes,kpgriffith/kubernetes,dereknex/kubernetes,roberthbailey/kubernetes,stevesloka/kubernetes,hex108/kubernetes,xlgao-zju/kubernetes,micahhausler/kubernetes,kubernetes/kubernetes,xlgao-zju/kubernetes,ii/kubernetes,cmluciano/kubernetes,verb/kubernetes,fgimenez/kubernetes,k82cn/kubernetes,cofyc/kubernetes,erwinvaneyk/kubernetes,tallclair/kubernetes,k82cn/kubernetes,Acidburn0zzz/kubernetes,mengqiy/kubernetes,fabriziopandini/kubernetes,jackfrancis/kubernetes,Lion-Wei/kubernetes,tpepper/kubernetes,jingxu97/kubernetes,dixudx/kubernetes,huangjiuyuan/kubernetes,saad-ali/kubernetes,erwinvaneyk/kubernetes,krmayankk/kubernetes,PI-Victor/kubernetes,li-ang/kubernetes,PiotrProkop/kubernetes,ixdy/kubernetes,mahak/kubernetes,carlory/kubernetes,dereknex/kubernetes,verult/kubernetes,openshift/kubernetes,joelsmith/kubernetes,mengqiy/kubernetes,coolsvap/kubernetes,fgimenez/kubernetes,mYmNeo/kubernetes,chrislovecnm/kubernetes,JacobTanenbaum/kubernetes,zhouhaibing089/kubernetes,yarntime/kubernetes,csrwng/kubernetes,ravilr/kubernetes,openshift/kubernetes,du2016/kubernetes,tomzhang/kubernetes,fejta/kubernetes,kpgriffith/kubernetes,zhangmingld/kubernetes,ping035627/kubernetes,johscheuer/kubernetes,andrewsykim/kubernetes,thockin/kubernetes,jessfraz/kubernetes,chrislovecnm/kubernetes,tomzhang/kubernetes,dixudx/kubernetes,wanghaoran1988/kubernetes,cofyc/kubernetes,csrwng/kubernetes,verb/kubernetes,jdef/kubernetes,ravisantoshgudimetla/kubernetes,rnaveiras/kubernetes,tomerf/kubernetes,tomerf/kubernetes,iterion/kubernetes,yujuhong/kubernetes,andrewsykim/kubernetes,tengqm/kubernetes,rrati/kubernetes,roberthbailey/kubernetes,dlorenc/kubernetes,nikhita/kubernetes,jsafrane/kubernetes,monopole/kubernetes,kpgriffith/kubernetes,ravilr/kubernetes,yarntime/kubernetes,pires/kubernetes,kevin-wangzefeng/kubernetes,feiskyer/kubernetes,mahak/kubernetes,fgimenez/kubernetes,openshift/kubernetes,mengqiy/kubernetes,sanjeevm0/kubernetes,olivierlemasle/kubernetes,kevin-wangzefeng/kubernetes,klaus1982/kubernetes,xlgao-zju/kubernetes,micahhausler/kubernetes,nak3/kubernetes,mosoft521/kubernetes,johscheuer/kubernetes,luxas/kubernetes,sdminonne/kubernetes,csrwng/kubernetes,ingvagabund/kubernetes,csrwng/kubernetes,rnaveiras/kubernetes,Lion-Wei/kubernetes,verb/kubernetes,maciaszczykm/kubernetes,alejandroEsc/kubernetes,coolsvap/kubernetes,ingvagabund/kubernetes,yujuhong/kubernetes,huangjiuyuan/kubernetes,k82/kubernetes,bparees/kubernetes,nak3/kubernetes,fgimenez/kubernetes,k82/kubernetes,mosoft521/kubernetes,krmayankk/kubernetes,gnufied/kubernetes,PI-Victor/kubernetes,hex108/kubernetes,andrewrynhard/kubernetes,humblec/kubernetes,nckturner/kubernetes,cblecker/kubernetes,chestack/kubernetes,MikeSpreitzer/kubernetes,huangjiuyuan/kubernetes,tpepper/kubernetes,jdef/kubernetes,tomzhang/kubernetes,zhouhaibing089/kubernetes,fejta/kubernetes,verb/kubernete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