Remove ES cache feature flags

ee/app/models/ee/application_setting.rb

@@ -150,8 +150,6 @@ module EE
       return false unless elasticsearch_indexing?
       return true unless elasticsearch_limit_indexing?
 
-      return elasticsearch_limited_project_exists?(project) unless ::Feature.enabled?(:elasticsearch_indexes_project_cache, default_enabled: true)
-
       ::Gitlab::Elastic::ElasticsearchEnabledCache.fetch(:project, project.id) do
         elasticsearch_limited_project_exists?(project)
       end
@@ -161,8 +159,6 @@ module EE
       return false unless elasticsearch_indexing?
       return true unless elasticsearch_limit_indexing?
 
-      elasticsearch_limited_namespaces.exists?(namespace.id) unless ::Feature.enabled?(:elasticsearch_indexes_namespace_cache, default_enabled: true)
-
       ::Gitlab::Elastic::ElasticsearchEnabledCache.fetch(:namespace, namespace.id) do
         elasticsearch_limited_namespaces.exists?(namespace.id)
       end

ee/config/feature_flags/development/elasticsearch_indexes_namespace_cache.yml

----
-name: elasticsearch_indexes_namespace_cache
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41274
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/244847
-group: group::global search
-type: development
-default_enabled: true

ee/config/feature_flags/development/elasticsearch_indexes_project_cache.yml

----
-name: elasticsearch_indexes_project_cache
-introduced_by_url: 
-rollout_issue_url: 
-group: 
-type: development
-default_enabled: true

ee/spec/models/application_setting_spec.rb

@@ -395,18 +395,6 @@ RSpec.describe ApplicationSetting do
 
           expect(setting.elasticsearch_indexes_project?(projects.first)).to be(true)
         end
-
-        context 'when elasticsearch_indexes_project_cache feature flag is disabled' do
-          before do
-            stub_feature_flags(elasticsearch_indexes_project_cache: false)
-          end
-
-          it 'does not use the cache' do
-            expect(::Gitlab::Elastic::ElasticsearchEnabledCache).not_to receive(:fetch)
-
-            expect(setting.elasticsearch_indexes_project?(projects.first)).to be(false)
-          end
-        end
       end
     end
   end