Remove unused feature flag pack_objects_limiting_remote_ip
pack_objects_limiting_remote_ip
has no uses but is still defined
in the code base. Remove it.
Related to https://gitlab.com/gitlab-org/gitaly/-/issues/5106
pack_objects_limiting_remote_ip
has no uses but is still defined
in the code base. Remove it.
Related to https://gitlab.com/gitlab-org/gitaly/-/issues/5106