Revert "connection: ssh: Clear environment when connecting to LXC containers"
Revert "connection: ssh: Clear environment when connecting to LXC containers"

Unfortunately this breaks other roles/deployments as there are now
no environment variables set for the user. This is being reverted to
unblock the gate. We'll need to more carefully cross-repo test this
when it comes in again.

This reverts commit c2c71bc2b078ad6b16774e76b735dd8251565633.

Change-Id: I5981e72d8153e6ea490446ac9e2e8e31959d9f72

openstack/openstack-ansible-plugins,os-cloud/openstack-ansible-plugins,os-cloud/openstack-ansible-plugins,openstack/openstack-ansible-plugins