Zabbix

.......... [DEV-2727] removed unused functions

Merge in ZBX/zabbix from feature/DEV-2727-6.0 to release/6.0

* commit 'd628e62a66756a039ef2e9296a3efd26fb6ff17b':
  ..F....... [DEV-2727] added missing empty line
  .......... [DEV-2727] removed unused functions