Revert "handle grouped cgroup mounts (e.g. cpu,cpuacct)"
Revert "handle grouped cgroup mounts (e.g. cpu,cpuacct)"

This reverts commit 9d1d142d4ec92547e3672cbd21794e7795758d74.

Signed-off-by: Alberto Leal <5dc1f959f7a95a292a4c05038be744ad597dff10@pivotal.io>

cloudfoundry-incubator/garden-linux,cloudfoundry-incubator/garden-linux,cloudfoundry-incubator/garden-linux