fix(centAcl.php): Dead code removed (#6262)
fix(centAcl.php): Dead code removed (#6262)

* fix(centAcl.php): Dead code removed

The SQL query is simplified a little and all a string affectation
is removed, because done for nothing...
$hostNameCache is no more used.

centreon/centreon,centreon/centreon,centreon/centreon,centreon/centreon,centreon/centreon,centreon/centreon,centreon/centreon