Zabbix

..F....... [DEV-3771] fixed vault certificates checkbox behavior and removed unnecessary vault parameter checks

* commit 'ef68cc9fbab38e30f063953d5b6127071a811538':
  ..F....... [DEV-3771] fixing issues with CyberArk certificate paths being passed down in connection even if certificate checkbox is not selected
  ..F....... [DEV-3771] changed value for "Database host verification" in example configuration file to match the default value in CConfigFile.php
  ..F....... [DEV-3771] removed meaningless function, minor coding style fix
  ..F....... [DEV-3771] removed necessity to check VAULT_CERT_FILE and VAULT_KEY_FILE for null values, added usage of CConfigFile defaults, fixed Vault certificates checkbox