Cleanup remaining HipchatService code

- Remove HipChat service and records 13.12
  https://gitlab.com/gitlab-org/gitlab/-/merge_requests/59769
- Cleanup remaining HipchatService code 14.0 => We are here

https://gitlab.com/gitlab-org/gitlab/-/issues/27954

.markdownlint.yml

@@ -66,7 +66,6 @@
     "Grafana",
     "Gzip",
     "Helm",
-    "HipChat",
     "ID",
     "Ingress",
     "jasmine-jquery",

.rubocop_manual_todo.yml

@@ -1655,7 +1655,6 @@ Gitlab/NamespacedClass:
     - 'app/models/project_services/discord_service.rb'
     - 'app/models/project_services/drone_ci_service.rb'
     - 'app/models/project_services/hangouts_chat_service.rb'
-    - 'app/models/project_services/hipchat_service.rb'
     - 'app/models/project_services/issue_tracker_data.rb'
     - 'app/models/project_services/jenkins_service.rb'
     - 'app/models/project_services/jira_tracker_data.rb'

app/models/project.rb

@@ -1406,9 +1406,9 @@ class Project < ApplicationRecord
   end
 
   def disabled_services
-    return %w[datadog hipchat] unless Feature.enabled?(:datadog_ci_integration, self)
+    return %w[datadog] unless Feature.enabled?(:datadog_ci_integration, self)
 
-    %w[hipchat]
+    []
   end
 
   def find_or_initialize_service(name)

app/models/project_services/hipchat_service.rb

-# frozen_string_literal: true
-
-# This service is scheduled for removal. All records must
-# be deleted before the class can be removed.
-# https://gitlab.com/gitlab-org/gitlab/-/issues/27954
-class HipchatService < Integration
-  before_save :prevent_save
-
-  def self.to_param
-    'hipchat'
-  end
-
-  def self.supported_events
-    []
-  end
-
-  def execute(data)
-    # We removed the hipchat gem due to https://gitlab.com/gitlab-org/gitlab/-/issues/325851#note_537143149
-    # HipChat is unusable anyway, so do nothing in this method
-  end
-
-  private
-
-  def prevent_save
-    errors.add(:base, _('HipChat endpoint is deprecated and should not be created or modified.'))
-
-    # Stops execution of callbacks and database operation while
-    # preserving expectations of #save (will not raise) & #save! (raises)
-    # https://guides.rubyonrails.org/active_record_callbacks.html#halting-execution
-    throw :abort # rubocop:disable Cop/BanCatchThrow
-  end
-end

doc/user/project/integrations/hipchat.md

----
-redirect_to: 'index.md'
-remove_date: '2021-06-30'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-06-30. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

locale/gitlab.pot

@@ -16440,9 +16440,6 @@ msgstr ""
 msgid "HighlightBar|Time to SLA:"
 msgstr ""
 
-msgid "HipChat endpoint is deprecated and should not be created or modified."
-msgstr ""
-
 msgid "History"
 msgstr ""
 

spec/models/project_services/hipchat_service_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-# HipchatService is partially removed and it will be remove completely
-# after the deletion of all the database records.
-# https://gitlab.com/gitlab-org/gitlab/-/issues/27954
-RSpec.describe HipchatService do
-  let_it_be(:project) { create(:project) }
-
-  subject(:service) { described_class.new(project: project) }
-
-  it { is_expected.to be_valid }
-
-  describe '#to_param' do
-    subject { service.to_param }
-
-    it { is_expected.to eq('hipchat') }
-  end
-
-  describe '#supported_events' do
-    subject { service.supported_events }
-
-    it { is_expected.to be_empty }
-  end
-
-  describe '#save' do
-    it 'prevents records from being created or updated' do
-      expect(service.save).to be_falsey
-
-      expect(service.errors.full_messages).to include(
-        'HipChat endpoint is deprecated and should not be created or modified.'
-      )
-    end
-  end
-end