NEB: avoid duplicate hosts / services during ID change.
NEB: avoid duplicate hosts / services during ID change.

This commit sends host / service deletion event when their ID
change. Such host / service will immediately be recreated with
the new ID. This fixes #4867.

centreon/centreon-broker,centreon/centreon-broker,centreon/centreon-broker,centreon/centreon-broker,centreon/centreon-broker