gitaly docs: Remove cgroups
We currently have a bug in the cgroups implementation which makes it unusable. It's still behind a feature flag anyways, so it's better to remove the public facing docs for now until 15.1 when it's ready to use.
We currently have a bug in the cgroups implementation which makes it unusable. It's still behind a feature flag anyways, so it's better to remove the public facing docs for now until 15.1 when it's ready to use.