Do not reserve resources for ironic nova-compute

In case of ironic instance leaves on dedicated bareletam server and
there is no need to reserve any resources on nova-compute as workload
is not running on it.

Change-Id: Ic1ceea532babe073ad0b2a2eec4cf038a50e16c0
Related-Prod: PROD-27532
diff --git a/nova/compute_ironic/cluster.yml b/nova/compute_ironic/cluster.yml
index 6d827b6..bed113f 100644
--- a/nova/compute_ironic/cluster.yml
+++ b/nova/compute_ironic/cluster.yml
@@ -10,6 +10,9 @@
       pkgs:
         - nova-compute-ironic
       instance_build_timeout: ${_param:nova_instance_build_timeout}
+      reserved_host_memory_mb: 0
+      reserved_host_disk_mb: 0
+      reserved_host_cpu: 0
       database:
         engine: mysql
         host: ${_param:openstack_database_address}
diff --git a/nova/compute_ironic/single.yml b/nova/compute_ironic/single.yml
index 3ddcc18..6534e43 100644
--- a/nova/compute_ironic/single.yml
+++ b/nova/compute_ironic/single.yml
@@ -10,6 +10,9 @@
       pkgs:
         - nova-compute-ironic
       instance_build_timeout: ${_param:nova_instance_build_timeout}
+      reserved_host_memory_mb: 0
+      reserved_host_disk_mb: 0
+      reserved_host_cpu: 0
       database:
         engine: mysql
         host: ${_param:control_address}