refactoring: Removing inclusion validation on region for ASCOR country

app/admin/ascor/countries.rb

@@ -44,7 +44,7 @@
     f.inputs do
       f.input :name
       f.input :iso, label: 'Country ISO code'
-      f.input :region, as: :select, collection: ASCOR::Country::REGIONS
+      f.input :region
       f.input :wb_lending_group, as: :select, collection: ASCOR::Country::LENDING_GROUPS, label: 'World Bank lending group'
       f.input :fiscal_monitor_category, as: :select, collection: ASCOR::Country::MONITOR_CATEGORIES,
                                         label: 'International Monetary Fund fiscal monitor category'

app/models/ascor/country.rb

@@ -18,14 +18,6 @@ class ASCOR::Country < ApplicationRecord
   include VisibilityStatus
   extend FriendlyId
 
-  REGIONS = [
-    'Africa',
-    'Asia',
-    'Europe',
-    'Latin America and Caribbean',
-    'North America',
-    'Oceania'
-  ].freeze
   LENDING_GROUPS = %w[High-income Upper-middle-income Lower-middle-income Low-income].freeze
   MONITOR_CATEGORIES = [
     'Advanced economies',
@@ -49,7 +41,6 @@ class ASCOR::Country < ApplicationRecord
 
   validates_presence_of :name, :slug, :iso, :region, :wb_lending_group, :fiscal_monitor_category
   validates_uniqueness_of :name, :slug, :iso
-  validates :region, inclusion: {in: REGIONS}, allow_nil: true
   validates :wb_lending_group, inclusion: {in: LENDING_GROUPS}, allow_nil: true
   validates :fiscal_monitor_category, inclusion: {in: MONITOR_CATEGORIES}, allow_nil: true
   validates :type_of_party, inclusion: {in: TYPE_OF_PARTY}, allow_nil: true

spec/models/ascor/countries_spec.rb

@@ -42,11 +42,6 @@
     expect(subject).to have(1).errors_on(:iso)
   end
 
-  it 'should be invalid if region is not in REGIONS' do
-    subject.region = 'TEST'
-    expect(subject).to have(1).errors_on(:region)
-  end
-
   it 'should be invalid if wb_lending_group is not in LENDING_GROUPS' do
     subject.wb_lending_group = 'TEST'
     expect(subject).to have(1).errors_on(:wb_lending_group)