Zabbix

A.F....... [ZBX-22609] fixed possibility to remove the last LDAP server when LDAP authentication is still enabled

* commit 'b90346b72664359add23e7506d8605feb6dc9d39':
  A.F....... [ZBX-22609] fixed userdirectory.delete validation; reverted unneeded changes
  A......... [ZBX-22609] reverted ZBX-22553
  A.F....... [ZBX-22609] fixed possibility to remove the last LDAP server when LDAP authentication is still enabled
  A......... [ZBX-22553] fixed authentication.update not allowing to remove deprovisioning group without unchecking inactive SAML/LDAP JIT provisioning