Remove admin approval feature flag

Remove admin_approval_for_new_user_signups feature flag since it's
currently enabled by default and not causing customer problems.

app/controllers/admin/users_controller.rb

@@ -6,7 +6,6 @@ class Admin::UsersController < Admin::ApplicationController
   before_action :user, except: [:index, :new, :create]
   before_action :check_impersonation_availability, only: :impersonate
   before_action :ensure_destroy_prerequisites_met, only: [:destroy]
-  before_action :check_admin_approval_feature_available!, only: [:approve]
 
   feature_category :users
 
@@ -298,10 +297,6 @@ class Admin::UsersController < Admin::ApplicationController
   def log_impersonation_event
     Gitlab::AppLogger.info(_("User %{current_user_username} has started impersonating %{username}") % { current_user_username: current_user.username, username: user.username })
   end
-
-  def check_admin_approval_feature_available!
-    access_denied! unless Feature.enabled?(:admin_approval_for_new_user_signups, default_enabled: true)
-  end
 end
 
 Admin::UsersController.prepend_if_ee('EE::Admin::UsersController')

app/controllers/registrations_controller.rb

@@ -218,7 +218,6 @@ class RegistrationsController < Devise::RegistrationsController
   end
 
   def set_user_state
-    return unless Feature.enabled?(:admin_approval_for_new_user_signups, default_enabled: true)
     return unless Gitlab::CurrentSettings.require_admin_approval_after_user_signup
 
     resource.state = BLOCKED_PENDING_APPROVAL_STATE

app/views/admin/application_settings/_signup.html.haml

@@ -9,7 +9,6 @@
           Sign-up enabled
           .form-text.text-muted
             = _("When enabled, any user visiting %{host} will be able to create an account.") % { host: "#{new_user_session_url(host: Gitlab.config.gitlab.host)}" }
-    - if Feature.enabled?(:admin_approval_for_new_user_signups, default_enabled: true)
     .form-group
       .form-check
         = f.check_box :require_admin_approval_after_user_signup, class: 'form-check-input'

app/views/admin/users/index.html.haml

@@ -30,7 +30,6 @@
       = link_to admin_users_path(filter: "blocked") do
         = s_('AdminUsers|Blocked')
         %small.badge.badge-pill= limited_counter_with_delimiter(User.blocked)
-    - if Feature.enabled?(:admin_approval_for_new_user_signups, default_enabled: true)
     = nav_link(html_options: { class: "#{active_when(params[:filter] == 'blocked_pending_approval')} filter-blocked-pending-approval" }) do
       = link_to admin_users_path(filter: "blocked_pending_approval") do
         = s_('AdminUsers|Pending approval')

spec/controllers/admin/users_controller_spec.rb

@@ -107,23 +107,7 @@ RSpec.describe Admin::UsersController do
 
     subject { put :approve, params: { id: user.username } }
 
-    context 'when feature is disabled' do
-      before do
-        stub_feature_flags(admin_approval_for_new_user_signups: false)
-      end
-
-      it 'responds with access denied' do
-        subject
-
-        expect(response).to have_gitlab_http_status(:not_found)
-      end
-    end
-
     context 'when feature is enabled' do
-      before do
-        stub_feature_flags(admin_approval_for_new_user_signups: true)
-      end
-
       context 'when successful' do
         it 'activates the user' do
           subject

spec/controllers/registrations_controller_spec.rb

@@ -47,10 +47,6 @@ RSpec.describe RegistrationsController do
 
     context '`blocked_pending_approval` state' do
       context 'when the feature is enabled' do
-        before do
-          stub_feature_flags(admin_approval_for_new_user_signups: true)
-        end
-
         context 'when the `require_admin_approval_after_user_signup` setting is turned on' do
           before do
             stub_application_setting(require_admin_approval_after_user_signup: true)
@@ -127,10 +123,6 @@ RSpec.describe RegistrationsController do
       end
 
       context 'when the feature is disabled' do
-        before do
-          stub_feature_flags(admin_approval_for_new_user_signups: false)
-        end
-
         context 'when the `require_admin_approval_after_user_signup` setting is turned on' do
           before do
             stub_application_setting(require_admin_approval_after_user_signup: true)

spec/features/admin/admin_settings_spec.rb

@@ -133,10 +133,6 @@ RSpec.describe 'Admin updates settings', :clean_gitlab_redis_shared_state, :do_n
       context 'Change Sign-up restrictions' do
         context 'Require Admin approval for new signup setting' do
           context 'when feature is enabled' do
-            before do
-              stub_feature_flags(admin_approval_for_new_user_signups: true)
-            end
-
             it 'changes the setting' do
               page.within('.as-signup') do
                 check 'Require admin approval for new sign-ups'
@@ -147,18 +143,6 @@ RSpec.describe 'Admin updates settings', :clean_gitlab_redis_shared_state, :do_n
               expect(page).to have_content "Application settings saved successfully"
             end
           end
-
-          context 'when feature is disabled' do
-            before do
-              stub_feature_flags(admin_approval_for_new_user_signups: false)
-            end
-
-            it 'does not show the the setting' do
-              page.within('.as-signup') do
-                expect(page).not_to have_selector('.application_setting_require_admin_approval_after_user_signup')
-              end
-            end
-          end
         end
       end
 

spec/features/admin/admin_users_spec.rb

@@ -77,7 +77,6 @@ RSpec.describe "Admin::Users" do
       context '`Pending approval` tab' do
         context 'feature is enabled' do
           before do
-            stub_feature_flags(admin_approval_for_new_user_signups: true)
             visit admin_users_path
           end
 
@@ -85,17 +84,6 @@ RSpec.describe "Admin::Users" do
             expect(page).to have_link('Pending approval', href: admin_users_path(filter: 'blocked_pending_approval'))
           end
         end
-
-        context 'feature is disabled' do
-          before do
-            stub_feature_flags(admin_approval_for_new_user_signups: false)
-            visit admin_users_path
-          end
-
-          it 'does not show the `Pending approval` tab' do
-            expect(page).not_to have_link('Pending approval', href: admin_users_path(filter: 'blocked_pending_approval'))
-          end
-        end
       end
     end