Zabbix

A......... [ZBX-19747] fixed inability to delete a template containing an item prototype with a valuemap, if the template is linked to a host and the discovered item was created

* commit 'db8ce078708a845671675743b617b9a1b69d1fb1':
  A......... [ZBX-19747] fixed inability to delete a template that have an item with value map, if such is linked to another template
  AD........ [ZBX-19747] simplified code; fixed ChangeLog entry
  A......... [ZBX-19747] fixed inability to delete a template that have an item prototype with value map, if such is linked to host and discovered item was created