Remove deprecated nova::periodic_interval

The parameter was deprecated in 23.0.0 release (2023.1)[1] and has had
no effect since then.

[1] 9d97a00634

Change-Id: Icc1b7f412c49f350c35be7f4a2fe9278808f6e15

manifests/init.pp

@@ -381,10 +381,6 @@
 #   (optional) The strategy to use for auth: noauth or keystone.
 #   Defaults to undef
 #
-# [*periodic_interval*]
-#  (optional) Seconds between running periodic tasks.
-#  Defaults to undef
-#
 class nova(
   $ensure_package                         = 'present',
   $default_transport_url                  = $facts['os_service_default'],
@@ -466,7 +462,6 @@ class nova(
   $instance_name_template                 = $facts['os_service_default'],
   # DEPRECATED PARAMETERS
   $auth_strategy                          = undef,
-  $periodic_interval                      = undef,
 ) inherits nova::params {
 
   include nova::deps
@@ -476,10 +471,6 @@ class nova(
       warning('enabled_ssl_apis is empty but use_ssl is set to true')
   }
 
-  if $periodic_interval != undef {
-    warning('The periodic_interval parameter is deprecated and has no effect.')
-  }
-
   if $use_ssl {
     if !$cert_file {
       fail('The cert_file parameter is required when use_ssl is set to true')

releasenotes/notes/remove-periodic_interval-299ed428b67b45ba.yaml

@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The deprecated ``nova::periodic_interval`` parameter has been removed.