AMBARI-3615. Ambari agent creates empty folder /var/ambari-agent (dsen)
AMBARI-3616 After deleting host with last slave component charts throw js errors. (ababiichuk)
Revert "AMBARI-3615. Ambari agent creates empty folder /var/ambari-agent (dsen)"

This reverts commit c4a4b5a97d0d0f191730a4061433f9138d2cdf5c.