Auto-registration and Network discovery can link template to host created by LLD

Auto-registration:

1. Create host discovered by LLD and disable LLD;
2. Create auto-registration to link template for such host;
3. Run auto-registration (e.g. run agent with discovered host name);

Result: template is linked to LLD discovered host and cannot be removed.

Expected: no template is linked.

Network discovery:

1. Create host discovered by LLD and disable LLD;
2. Create network discovery and discovery action to link template for host from p.1
3. Run service for network discovery (e.g. run agent with host name and ip from p.1)

Result: template is linked either to host prototype of host from p.1 or to LLD host directly, if host prototype and discovered host ip are different.

Expected: no template is linked.