Remove deprecated cache_prefetcher_interval

This parameter was deprecated during the previous cycle[1] and has had
no effect since then.

[1] 89857141d1

Change-Id: I21e59483cef2847b02783a13072745a9f434a318

manifests/api.pp

@@ -266,10 +266,6 @@
 #   service name removed.
 #   Defaults to undef
 #
-# [*cache_prefetcher_interval*]
-#   (optional) The interval in seconds to run periodic job 'cache_images'
-#   Defaults to undef.
-#
 class glance::api(
   $package_ensure                       = 'present',
   $bind_host                            = $facts['os_service_default'],
@@ -329,7 +325,6 @@ class glance::api(
   $filesystem_store_metadata_file       = undef,
   $filesystem_store_file_perm           = undef,
   $pipeline                             = undef,
-  $cache_prefetcher_interval            = undef,
 ) inherits glance {
 
   include glance::deps
@@ -342,13 +337,6 @@ class glance::api(
     }
   }
 
-  if $cache_prefetcher_interval {
-    warning('The cache_prefetcher_interval parameter has been deprecate and has no effect.')
-  }
-  glance_api_config {
-    'DEFAULT/cache_prefetcher_interval': ensure => absent;
-  }
-
   if $sync_db {
     include glance::db::sync
     include glance::db::metadefs

releasenotes/notes/remove-cache_prefetcher_interval-c22a500fa6a121b1.yaml

@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The ``glance::api::cache_prefetcher_interval`` parameter has been removed.