Remove backend checks for Jira issue details

Remove jira_issues_show_integration feature flag

changelogs/unreleased/299832-feature-flag-enable-individual-jira-issue-pages.yml

----
-title: Enable :jira_issues_show_integration feature flag by default
-merge_request: 56182
-author:
-type: added

config/feature_flags/development/jira_issues_show_integration.yml

----
-name: jira_issues_show_integration
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/52446
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/299832
-milestone: '13.9'
-type: development
-group: group::ecosystem
-default_enabled: false

doc/user/project/integrations/jira.md

@@ -261,14 +261,8 @@ Issues are grouped into tabs based on their [Jira status](https://confluence.atl
 
 #### View a Jira issue
 
-> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/299832) in [GitLab Premium](https://about.gitlab.com/pricing/) 13.10.
-> - It's [deployed behind a feature flag](../../feature_flags.md), disabled by default.
-> - It's enabled on GitLab.com.
-> - It's recommended for production use.
-> - For GitLab self-managed instances, GitLab administrators can opt to [enable it](#enable-or-disable-jira-issue-detail-view). **(PREMIUM)**
-
-WARNING:
-This feature might not be available to you. Check the **version history** note above for details.
+> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/299832) in [GitLab Premium](https://about.gitlab.com/pricing/) 13.10 behind a feature flag, disabled by default.
+> - [Feature flag removed](https://gitlab.com/gitlab-org/gitlab/-/issues/299832) in [GitLab Premium](https://about.gitlab.com/pricing/) 13.11.
 
 When viewing the [Jira issues list](#view-jira-issues), select an issue from the
 list to open it in GitLab:
@@ -323,22 +317,3 @@ which may lead to a `401 unauthorized` error when testing your Jira integration.
 If CAPTCHA has been triggered, you can't use Jira's REST API to
 authenticate with the Jira site. You need to log in to your Jira instance
 and complete the CAPTCHA.
-
-## Enable or disable Jira issue detail view
-
-Jira issue detail view is under development but ready for production use. It is
-deployed behind a feature flag that is **disabled by default**.
-[GitLab administrators with access to the GitLab Rails console](../../../administration/feature_flags.md)
-can enable it.
-
-To enable it:
-
-```ruby
-Feature.enable(:jira_issues_show_integration)
-```
-
-To disable it:
-
-```ruby
-Feature.disable(:jira_issues_show_integration)
-```

ee/app/controllers/projects/integrations/jira/issues_controller.rb

@@ -13,7 +13,6 @@ module Projects
           name: 'i_ecosystem_jira_service_list_issues'
 
         before_action :check_feature_enabled!
-        before_action :check_issues_show_enabled!, only: :show
 
         rescue_from ::Projects::Integrations::Jira::IssuesFinder::IntegrationError, with: :render_integration_error
         rescue_from ::Projects::Integrations::Jira::IssuesFinder::RequestError, with: :render_request_error
@@ -96,10 +95,6 @@ module Projects
           return render_404 unless project.jira_issues_integration_available? && project.jira_service.issues_enabled
         end
 
-        def check_issues_show_enabled!
-          render_404 unless ::Feature.enabled?(:jira_issues_show_integration, @project, default_enabled: :yaml)
-        end
-
         # Return the informational message to the user
         def render_integration_error(exception)
           log_exception(exception)

ee/app/serializers/integrations/jira/issue_entity.rb

@@ -59,9 +59,7 @@ module Integrations
       end
 
       expose :gitlab_web_url do |jira_issue|
-        if ::Feature.enabled?(:jira_issues_show_integration, project, default_enabled: :yaml)
-          project_integrations_jira_issue_path(project, jira_issue.key)
-        end
+        project_integrations_jira_issue_path(project, jira_issue.key)
       end
 
       expose :references do |jira_issue|

ee/changelogs/unreleased/299832-feature-flag-enable-jira_issues_show_integration.yml

+---
+title: Add integration to view Jira issue details within GitLab
+merge_request: 56942
+author:
+type: added

ee/spec/controllers/projects/integrations/jira/issues_controller_spec.rb

@@ -184,9 +184,9 @@ RSpec.describe Projects::Integrations::Jira::IssuesController do
   end
 
   describe 'GET #show' do
-    context 'when `jira_issues_show_integration` feature is disabled' do
+    context 'when jira_issues_integration licensed feature is not available' do
       before do
-        stub_feature_flags(jira_issues_show_integration: false)
+        stub_licensed_features(jira_issues_integration: false)
       end
 
       it 'returns 404 status' do
@@ -196,12 +196,12 @@ RSpec.describe Projects::Integrations::Jira::IssuesController do
       end
     end
 
-    context 'when `jira_issues_show_integration` feature is enabled' do
+    context 'when jira_issues_integration licensed feature is available' do
       let(:jira_issue) { { 'from' => 'jira' } }
       let(:issue_json) { { 'from' => 'backend' } }
 
       before do
-        stub_feature_flags(jira_issues_show_integration: true)
+        stub_licensed_features(jira_issues_integration: true)
 
         expect_next_found_instance_of(JiraService) do |service|
           expect(service).to receive(:find_issue).with('1', rendered_fields: true).and_return(jira_issue)

ee/spec/serializers/integrations/jira/issue_entity_spec.rb

@@ -124,14 +124,4 @@ RSpec.describe Integrations::Jira::IssueEntity do
       expect(subject).to include(labels: [])
     end
   end
-
-  context 'when feature flag "jira_issues_show_integration" is disabled' do
-    before do
-      stub_feature_flags(jira_issues_show_integration: false)
-    end
-
-    it 'sets `gitlab_web_url` to nil' do
-      expect(subject[:gitlab_web_url]).to eq(nil)
-    end
-  end
 end