Removing unused variable for cgroup subsystem
Removing unused variable for cgroup subsystem

Signed-off-by: rajasec <ea39b0f31038669e10b001f4a05eaba273e74d24@gmail.com>

mikebrow/runc,WeiZhang555/runc,stefanberger/runc,cyphar/runc,laijs/runc,shishir-a412ed/runc,xiaochenshen/runc,cloudfoundry-incubator/runc,estesp/runc,rajasec/runc,laijs/runc,cloudfoundry-incubator/runc,wking/runc,keloyang/runc,mikebrow/runc,avagin/runc,jhowardmsft/runc,mYmNeo/runc,WeiZhang555/runc,adrianreber/runc,kolyshkin/runc,hqhq/runc,justincormack/runc,vbatts/runc,stefanberger/runc,crosbymichael/runc,mikebrow/runc,hqhq/runc,cyphar/runc,rhatdan/runc,adrianreber/runc,docker/runc,coolljt0725/runc,dqminh/runc,keloyang/runc,WeiZhang555/runc,mYmNeo/runc,nkwilson/runc,avagin/runc,wking/runc,kolyshkin/runc,docker/runc,mYmNeo/runc,sunyuan3/runc,nkwilson/runc,justincormack/runc,adrianreber/runc,kolyshkin/runc,rajasec/runc,shishir-a412ed/runc,maxamillion/runc,rajasec/runc,kolyshkin/runc,mheon/runc,opencontainers/runc,opencontainers/runc,xiaochenshen/runc,dqminh/runc,crosbymichael/runc,vbatts/runc,justincormack/runc,coolljt0725/runc,opencontainers/runc,shishir-a412ed/runc,keloyang/runc,nkwilson/runc,estesp/runc,wking/runc,cyphar/runc,opencontainers/runc,jhowardmsft/runc,xiaochenshen/runc,jhowardmsft/runc,docker/runc,coolljt0725/runc,sunyuan3/runc,rhatdan/runc,dqminh/runc,estesp/runc,hqhq/runc,laijs/runc,cloudfoundry-incubator/runc,crosbymichael/runc,rhatdan/runc,stefanberger/runc,vbatts/runc,mheon/runc,avagin/runc,sunyuan3/runc,mheon/runc,dqminh/runc,maxamillion/runc,rhatdan/runc,maxamillion/runc