Remove `admin_deploy_keys_vue` feature flag

`admin_deploy_keys_vue` has been enabled for since 14.6 so it is time
to remove it.

Changelog: other

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

 - page_title _('Deploy Keys')
 
-- if Feature.enabled?(:admin_deploy_keys_vue, default_enabled: :yaml)
-  #js-admin-deploy-keys-table{ data: admin_deploy_keys_data }
-- else
-  - if @deploy_keys.any?
-    %h3.page-title.deploy-keys-title
-      = _('Public deploy keys (%{deploy_keys_count})') % { deploy_keys_count: @deploy_keys.load.size }
-      = link_to _('New deploy key'), new_admin_deploy_key_path, class: 'float-right btn gl-button btn-confirm btn-md gl-button'
-    %table.table.b-table.gl-table.b-table-stacked-lg{ data: { testid: 'deploy-keys-list' } }
-      %thead
-        %tr
-          %th= _('Title')
-          %th= _('Fingerprint')
-          %th= _('Projects with write access')
-          %th= _('Created')
-          %th.gl-lg-w-1px.gl-white-space-nowrap
-            %span.gl-sr-only
-              = _('Actions')
-      %tbody
-        - @deploy_keys.each do |deploy_key|
-          %tr
-            %td{ data: { label: _('Title') } }
-              %div
-                = deploy_key.title
-            %td{ data: { label: _('Fingerprint') } }
-              %div
-                %code= deploy_key.fingerprint
-            %td{ data: { label: _('Projects with write access') } }
-              %div
-                - deploy_key.projects_with_write_access.each do |project|
-                  = link_to project.full_name, admin_project_path(project), class: 'gl-display-block'
-            %td{ data: { label: _('Created') } }
-              %div
-                = time_ago_with_tooltip(deploy_key.created_at)
-            %td.gl-lg-w-1px.gl-white-space-nowrap{ data: { label: _('Actions') } }
-              %div
-                = link_to edit_admin_deploy_key_path(deploy_key), class: 'btn btn-default btn-md gl-button btn-icon gl-mr-3', aria: { label: _('Edit deploy key') } do
-                  = sprite_icon('pencil', css_class: 'gl-button-icon')
-                = link_to admin_deploy_key_path(deploy_key), data: { confirm: _('Are you sure?') }, method: :delete, class: 'btn btn-danger btn-md gl-button btn-icon', aria: { label: _('Remove deploy key') } do
-                  = sprite_icon('remove', css_class: 'gl-button-icon')
-
-  - else
-    = render 'shared/empty_states/deploy_keys'
+#js-admin-deploy-keys-table{ data: admin_deploy_keys_data }

app/views/shared/empty_states/_deploy_keys.html.haml

-.empty-state.gl-display-flex.gl-flex-direction-column.gl-flex-wrap.gl-text-center
-  .gl-flex-grow-0.gl-flex-shrink-0
-    .svg-250.svg-content
-      = image_tag 'illustrations/empty-state/empty-deploy-keys-lg.svg'
-  .gl-flex-grow-0.gl-flex-shrink-0
-    .text-content.gl-mx-auto.gl-my-0.gl-p-5
-      %h4.h4= _('Deploy Keys')
-      %p= _('Deploy keys grant read/write access to all repositories in your instance')
-      = link_to _('New deploy key'), new_admin_deploy_key_path, class: 'gl-button btn btn-confirm btn-md'

config/feature_flags/development/admin_deploy_keys_vue.yml

----
-name: admin_deploy_keys_vue
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/73580
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/344855
-milestone: '14.5'
-type: development
-group: group::access
-default_enabled: true

locale/gitlab.pot

@@ -28930,9 +28930,6 @@ msgstr ""
 msgid "Public deploy keys"
 msgstr ""
 
-msgid "Public deploy keys (%{deploy_keys_count})"
-msgstr ""
-
 msgid "Public pipelines"
 msgstr ""
 

spec/features/admin/admin_deploy_keys_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe 'admin deploy keys' do
+RSpec.describe 'admin deploy keys', :js do
   include Spec::Support::Helpers::ModalHelpers
 
   let_it_be(:admin) { create(:admin) }
@@ -15,7 +15,6 @@ RSpec.describe 'admin deploy keys' do
     gitlab_enable_admin_mode_sign_in(admin)
   end
 
-  shared_examples 'renders deploy keys correctly' do
   it 'show all public deploy keys' do
     visit admin_deploy_keys_path
 
@@ -75,10 +74,6 @@ RSpec.describe 'admin deploy keys' do
       end
     end
   end
-  end
-
-  context 'when `admin_deploy_keys_vue` feature flag is enabled', :js do
-    it_behaves_like 'renders deploy keys correctly'
 
   describe 'remove an existing deploy key' do
     before do
@@ -98,30 +93,4 @@ RSpec.describe 'admin deploy keys' do
       end
     end
   end
-  end
-
-  context 'when `admin_deploy_keys_vue` feature flag is disabled' do
-    before do
-      stub_feature_flags(admin_deploy_keys_vue: false)
-    end
-
-    it_behaves_like 'renders deploy keys correctly'
-
-    describe 'remove an existing deploy key' do
-      before do
-        visit admin_deploy_keys_path
-      end
-
-      it 'removes an existing deploy key' do
-        page.within('tr', text: deploy_key.title) do
-          click_link _('Remove deploy key')
-        end
-
-        expect(current_path).to eq admin_deploy_keys_path
-        page.within(find('[data-testid="deploy-keys-list"]', match: :first)) do
-          expect(page).not_to have_content(deploy_key.title)
-        end
-      end
-    end
-  end
 end