Remove legacy ram/disk/core filter

These filters were deprecated since stein and are removed
with https://review.opendev.org/#/c/672065/. This patch
cleans up them from packstack.

Change-Id: Ia5489430cff6eda32defec94f365448bfe801c91

packstack/puppet/modules/packstack/manifests/nova/sched.pp

@@ -1,12 +1,11 @@
 class packstack::nova::sched ()
 {
     class {'::nova::scheduler::filter':
-      # OpenStack doesn't include the CoreFilter (= CPU Filter) by default
       scheduler_default_filters => ['RetryFilter', 'AvailabilityZoneFilter',
-                                    'RamFilter', 'DiskFilter' , 'ComputeFilter',
+                                    'ComputeFilter',
                                     'ComputeCapabilitiesFilter', 'ImagePropertiesFilter',
                                     'ServerGroupAntiAffinityFilter',
-                                    'ServerGroupAffinityFilter', 'CoreFilter'],
+                                    'ServerGroupAffinityFilter'],
     }
 
     class { '::nova::scheduler':

releasenotes/notes/remove-legacy-nova-filters-d6e21a5e8f5c31a7.yaml

@@ -0,0 +1,6 @@
+---
+deprecations:
+  - |
+    Ram/Disk/Core Filter Scheduler were deprecated since
+    stein and are recently removed in nova, hence removing
+    it from Packstack.