Rollout arel_package_scopes feature

Removes the arel_package_scopes feature flag
The package project path scopes now use arel
based queries to enable keyset pagination.

Changelog: changed

app/models/packages/package.rb

@@ -147,23 +147,15 @@ class Packages::Package < ApplicationRecord
   scope :order_by_package_file, -> { joins(:package_files).order('packages_package_files.created_at ASC') }
 
   scope :order_project_path, -> do
-    if Feature.enabled?(:arel_package_scopes)
-      keyset_order = keyset_pagination_order(join_class: Project, column_name: :path, direction: :asc)
+    keyset_order = keyset_pagination_order(join_class: Project, column_name: :path, direction: :asc)
 
-      joins(:project).reorder(keyset_order)
-    else
-      joins(:project).reorder('projects.path ASC, id ASC')
-    end
+    joins(:project).reorder(keyset_order)
   end
 
   scope :order_project_path_desc, -> do
-    if Feature.enabled?(:arel_package_scopes)
-      keyset_order = keyset_pagination_order(join_class: Project, column_name: :path, direction: :desc)
+    keyset_order = keyset_pagination_order(join_class: Project, column_name: :path, direction: :desc)
 
-      joins(:project).reorder(keyset_order)
-    else
-      joins(:project).reorder('projects.path DESC, id DESC')
-    end
+    joins(:project).reorder(keyset_order)
   end
 
   after_commit :update_composer_cache, on: :destroy, if: -> { composer? }

config/feature_flags/development/arel_package_scopes.yml

----
-name: arel_package_scopes
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/62042
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/331306
-milestone: '13.12'
-type: development
-group: group::package
-default_enabled: false

spec/models/packages/package_spec.rb

@@ -757,19 +757,8 @@ RSpec.describe Packages::Package, type: :model do
       end
     end
 
-    context 'with arel scope feature flag enabled' do
-      it_behaves_like 'order_project_path scope'
-      it_behaves_like 'order_project_path_desc scope'
-    end
-
-    context 'with feature flag disabled' do
-      before do
-        stub_feature_flags(arel_package_scopes: false)
-      end
-
-      it_behaves_like 'order_project_path scope'
-      it_behaves_like 'order_project_path_desc scope'
-    end
+    it_behaves_like 'order_project_path scope'
+    it_behaves_like 'order_project_path_desc scope'
   end
 
   describe '.order_by_package_file' do