Remove PAT field for Code Suggestions

We no longer support PAT auth for Code Suggestions
starting from 16.4. Removing it from UI.
Preparing column removal from the DB.

Changelog: other
EE: true

config/locales/en.yml

@@ -10,8 +10,6 @@ en:
         pwa_short_name: "PWA short name"
         pwa_description: "PWA description"
         pwa_icon: "Icon"
-      application_setting:
-        ai_access_token: "Personal access token"
       incident_management/timeline_event:
         note: 'Timeline text'
       issue_link:

ee/app/helpers/admin/application_settings_helper.rb

@@ -15,13 +15,6 @@ def code_suggestions_description
         .html_safe % { link_start: link_start, link_end: '</a>'.html_safe }
     end
 
-    def code_suggestions_token_explanation
-      link_start = code_suggestions_link_start(code_suggestions_pat_docs_url)
-
-      s_('CodeSuggestionsSM|On GitLab.com, create a token. This token is required to use Code Suggestions on your self-managed instance. %{link_start}How do I create a token?%{link_end}')
-        .html_safe % { link_start: link_start, link_end: '</a>'.html_safe }
-    end
-
     def code_suggestions_agreement
       terms_link_start = code_suggestions_link_start(code_suggestions_agreement_url)
       ai_docs_link_start = code_suggestions_link_start(code_suggestions_ai_docs_url)
@@ -49,10 +42,6 @@ def code_suggestions_agreement_url
     def code_suggestions_ai_docs_url
       'https://docs.gitlab.com/ee/user/ai_features.html#third-party-services'
     end
-
-    def code_suggestions_pat_docs_url
-      'https://docs.gitlab.com/ee/user/profile/personal_access_tokens.html#create-a-personal-access-token'
-    end
     # rubocop:enable Gitlab/DocUrl
 
     # rubocop:disable Rails/OutputSafety

ee/app/views/admin/application_settings/_ai_access.html.haml

@@ -2,9 +2,6 @@
 - return unless License.feature_available?(:code_suggestions)
 
 - expanded = integration_expanded?('ai_access')
-- token_is_present = @application_setting.ai_access_token.present?
-- token_label = token_is_present ? s_('CodeSuggestionsSM|Enter new personal access token') : s_('CodeSuggestionsSM|Personal access token')
-- token_value = token_is_present ? ApplicationSetting::MASK_PASSWORD : ''
 
 %section.settings.no-animate#js-ai-access-settings{ class: ('expanded' if expanded) }
   .settings-header
@@ -24,9 +21,5 @@
           = f.gitlab_ui_checkbox_component :instance_level_code_suggestions_enabled,
             s_('CodeSuggestionsSM|Enable Code Suggestions for this instance %{beta}').html_safe % { beta: gl_badge_tag(_('Beta'), variant: :neutral, size: :sm) },
             help_text: code_suggestions_agreement
-          = f.label :ai_access_token, token_label, class: 'label-bold'
-          = f.password_field :ai_access_token, value: token_value, autocomplete: 'on', class: 'form-control gl-form-input', aria: { describedby: 'code_suggestions_token_explanation' }
-          %p.form-text.text-muted{ id: 'code_suggestions_token_explanation' }
-            = code_suggestions_token_explanation
 
       = f.submit _('Save changes'), pajamas_button: true

ee/spec/helpers/admin/application_settings_helper_spec.rb

@@ -10,12 +10,6 @@
       it { is_expected.to include 'https://docs.gitlab.com/ee/user/project/repository/code_suggestions.html' }
     end
 
-    describe '#code_suggestions_token_explanation' do
-      subject { helper.code_suggestions_token_explanation }
-
-      it { is_expected.to include 'https://docs.gitlab.com/ee/user/profile/personal_access_tokens.html#create-a-personal-access-token' }
-    end
-
     describe '#code_suggestions_agreement' do
       subject { helper.code_suggestions_agreement }
 

ee/spec/views/admin/application_settings/_ai_access.html.haml_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe 'admin/application_settings/_ai_access.html.haml', :with_license, feature_category: :code_suggestions do
-  let_it_be(:admin) { build_stubbed(:admin) }
-  let(:page) { Capybara::Node::Simple.new(rendered) }
-
-  before do
-    allow(::Gitlab).to receive(:org_or_com?).and_return(false) # Will not render partial for .com or .org
-    assign(:application_setting, application_setting)
-    allow(view).to receive(:current_user) { admin }
-    allow(view).to receive(:expanded).and_return(true)
-    stub_licensed_features(code_suggestions: true)
-  end
-
-  context 'when ai_access_token is not set' do
-    let(:application_setting) { build(:application_setting) }
-
-    it 'renders an empty password field' do
-      render
-      expect(rendered).to have_field('Personal access token', type: 'password')
-      expect(page.find_field('Personal access token').value).to be_blank
-    end
-  end
-
-  context 'when ai_access_token is set' do
-    let(:application_setting) do
-      build(:application_setting, ai_access_token: 'ai_access_token',
-        instance_level_code_suggestions_enabled: true)
-    end
-
-    it 'renders masked password field' do
-      render
-      expect(rendered).to have_field('Enter new personal access token', type: 'password')
-      expect(page.find_field('Enter new personal access token').value).to eq(ApplicationSetting::MASK_PASSWORD)
-    end
-  end
-end

ee/spec/views/admin/application_settings/general.html.haml_spec.rb

@@ -145,7 +145,6 @@
       it 'does not render the form' do
         render
         expect(rendered).not_to have_field('application_setting_instance_level_code_suggestions_enabled')
-        expect(rendered).not_to have_field('application_setting_ai_access_token')
       end
     end
 
@@ -167,7 +166,6 @@
           it 'renders the form' do
             render
             expect(rendered).to have_field('application_setting_instance_level_code_suggestions_enabled')
-            expect(rendered).to have_field('application_setting_ai_access_token')
           end
         end
 

locale/gitlab.pot

@@ -11527,15 +11527,6 @@ msgstr ""
 msgid "CodeSuggestionsSM|Enable Code Suggestions for users of this instance. %{link_start}What are Code Suggestions?%{link_end}"
 msgstr ""
-msgid "CodeSuggestionsSM|Enter new personal access token"
-msgstr ""
-
-msgid "CodeSuggestionsSM|On GitLab.com, create a token. This token is required to use Code Suggestions on your self-managed instance. %{link_start}How do I create a token?%{link_end}"
-msgstr ""
-
-msgid "CodeSuggestionsSM|Personal access token"
-msgstr ""
-
 msgid "CodeSuggestions|%{link_start}What are code suggestions?%{link_end}"
 msgstr ""