No bgp cleanup on reload domain list in case of name removal

[mikeS7]

No routes are removed from bgp or cache on domain list update on case of domain removal.
Expected behaviour - route should be removed from bgp and cache (db) on domain list update in case of domain removal.

Steps to reproduce:
Add domain to domain list
Reload domain list with HUP signal
Resolve domain
Check route in bap table - exist

Remove domain from domain list
Reload domain list with HUP signal
Check route in bgp table - still exists (looks like still exists in cache and db)

Restart is required to clear routes and db.