Remove IRONIC_USE_RESOURCE_CLASSES check

Nova has dropped support for non-resource class
baremetal scheduling, so the IRONIC_USE_RESOURCE_CLASSES
flag is no longer useful and has been removed.

Depends-On: https://review.openstack.org/565805/
Change-Id: Ib2e6c96409c98877f6a43b76f176c1420d2d415e

Author: mriedem

lib/nova_plugins/hypervisor-ironic

@@ -42,14 +42,6 @@ function configure_nova_hypervisor {
     iniset $NOVA_CONF DEFAULT compute_driver ironic.IronicDriver
     iniset $NOVA_CONF DEFAULT firewall_driver $LIBVIRT_FIREWALL_DRIVER
 
-    if [[ "$IRONIC_USE_RESOURCE_CLASSES" == "False" ]]; then
-        iniset $NOVA_CONF DEFAULT scheduler_host_manager ironic_host_manager
-        iniset $NOVA_CONF filter_scheduler use_baremetal_filters True
-        iniset $NOVA_CONF filter_scheduler host_subset_size 999
-        iniset $NOVA_CONF DEFAULT ram_allocation_ratio 1.0
-        iniset $NOVA_CONF DEFAULT reserved_host_memory_mb 0
-    fi
-
     # ironic section
     iniset $NOVA_CONF ironic auth_type password
     iniset $NOVA_CONF ironic username admin