Delete and simplify unused helper methods

Delete unused helper methods and simplify code to clean up
the codebase after removing feature flag code in
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/48244

app/helpers/issuables_helper.rb

@@ -61,16 +61,6 @@ module IssuablesHelper
     end
   end
 
-  def issuable_json_path(issuable)
-    project = issuable.project
-
-    if issuable.is_a?(MergeRequest)
-      project_merge_request_path(project, issuable.iid, :json)
-    else
-      project_issue_path(project, issuable.iid, :json)
-    end
-  end
-
   def serialize_issuable(issuable, opts = {})
     serializer_klass = case issuable
                        when Issue
@@ -174,18 +164,7 @@ module IssuablesHelper
     h(title || default_label)
   end
 
-  def to_url_reference(issuable)
-    case issuable
-    when Issue
-      link_to issuable.to_reference, issue_url(issuable)
-    when MergeRequest
-      link_to issuable.to_reference, merge_request_url(issuable)
-    else
-      issuable.to_reference
-    end
-  end
-
-  def issuable_meta(issuable, project, text)
+  def issuable_meta(issuable, project)
     output = []
     output << "Opened #{time_ago_with_tooltip(issuable.created_at)} by ".html_safe
 
@@ -340,10 +319,6 @@ module IssuablesHelper
     issuable_path(issuable, close_reopen_params(issuable, :reopen))
   end
 
-  def close_reopen_issuable_path(issuable, should_inverse = false)
-    issuable.closed? ^ should_inverse ? reopen_issuable_path(issuable) : close_issuable_path(issuable)
-  end
-
   def toggle_draft_issuable_path(issuable)
     wip_event = issuable.work_in_progress? ? 'unwip' : 'wip'
 
@@ -354,28 +329,6 @@ module IssuablesHelper
     polymorphic_path(issuable, *options)
   end
 
-  def issuable_url(issuable, *options)
-    case issuable
-    when Issue
-      issue_url(issuable, *options)
-    when MergeRequest
-      merge_request_url(issuable, *options)
-    end
-  end
-
-  def issuable_button_visibility(issuable, closed)
-    return 'hidden' if issuable_button_hidden?(issuable, closed)
-  end
-
-  def issuable_button_hidden?(issuable, closed)
-    case issuable
-    when Issue
-      issue_button_hidden?(issuable, closed)
-    when MergeRequest
-      merge_request_button_hidden?(issuable, closed)
-    end
-  end
-
   def issuable_author_is_current_user(issuable)
     issuable.author == current_user
   end

app/views/projects/merge_requests/_mr_title.html.haml

@@ -2,7 +2,7 @@
 - can_update_merge_request = can?(current_user, :update_merge_request, @merge_request)
 - can_reopen_merge_request = can?(current_user, :reopen_merge_request, @merge_request)
 - state_human_name, state_icon_name = state_name_with_icon(@merge_request)
-- are_close_and_open_buttons_hidden = issuable_button_hidden?(@merge_request, true) && issuable_button_hidden?(@merge_request, false)
+- are_close_and_open_buttons_hidden = merge_request_button_hidden?(@merge_request, true) && merge_request_button_hidden?(@merge_request, false)
 
 - if @merge_request.closed_without_fork?
   .gl-alert.gl-alert-danger.gl-mb-5
@@ -19,7 +19,7 @@
 
     .issuable-meta
       #js-issuable-header-warnings
-      = issuable_meta(@merge_request, @project, "Merge request")
+      = issuable_meta(@merge_request, @project)
 
     %a.btn.btn-default.float-right.d-block.d-sm-none.gutter-toggle.issuable-gutter-toggle.js-sidebar-toggle{ href: "#" }
       = sprite_icon('chevron-double-lg-left')
@@ -50,4 +50,4 @@
       - if can_update_merge_request && !are_close_and_open_buttons_hidden
         = render 'shared/issuable/close_reopen_draft_report_toggle', issuable: @merge_request
       - elsif !@merge_request.merged?
-        = link_to _('Report abuse'), new_abuse_report_path(user_id: @merge_request.author.id, ref_url: issuable_url(@merge_request)), class: 'gl-display-none gl-display-md-block gl-button btn btn-warning-secondary', title: _('Report abuse')
+        = link_to _('Report abuse'), new_abuse_report_path(user_id: @merge_request.author.id, ref_url: merge_request_url(@merge_request)), class: 'gl-display-none gl-display-md-block gl-button btn btn-warning-secondary', title: _('Report abuse')

app/views/shared/issuable/_close_reopen_draft_report_toggle.html.haml

@@ -30,7 +30,7 @@
           %li.divider.droplab-item-ignore
 
         %li.report-item
-          %a.report-abuse-link{ href: new_abuse_report_path(user_id: issuable.author.id, ref_url: issuable_url(issuable)) }
+          %a.report-abuse-link{ href: new_abuse_report_path(user_id: issuable.author.id, ref_url: merge_request_url(issuable)) }
             .description
               %strong.title= _('Report abuse')
               %p.text

app/views/shared/issue_type/_details_header.html.haml

@@ -11,7 +11,7 @@
 
     .issuable-meta
       #js-issuable-header-warnings
-      = issuable_meta(issuable, @project, issuable_display_type(issuable))
+      = issuable_meta(issuable, @project)
 
     %a.btn.gl-button.btn-default.float-right.gl-display-block.d-sm-none.gutter-toggle.issuable-gutter-toggle.js-sidebar-toggle{ href: "#" }
       = sprite_icon('chevron-double-lg-left')

ee/spec/frontend/fixtures/issues.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe Projects::IssuesController, '(JavaScript fixtures)', type: :controller do
-  include JavaScriptFixturesHelpers
-
-  let(:user) { create(:user, feed_token: 'feedtoken:coldfeed') }
-  let(:group) { create(:group) }
-  let(:project) { create(:project_empty_repo, namespace: group, path: 'issues-project') }
-
-  render_views
-
-  before(:all) do
-    clean_frontend_fixtures('ee/issues/')
-  end
-
-  before do
-    project.add_developer(user)
-
-    sign_in(user)
-  end
-
-  after do
-    remove_repository(project)
-  end
-
-  it 'ee/issues/blocked-issue.html' do
-    issue = create(:issue, project: project)
-    related_issue = create(:issue, project: project)
-    create(:issue_link, source: related_issue, target: issue, link_type: IssueLink::TYPE_BLOCKS)
-    render_issue(issue)
-  end
-
-  private
-
-  def render_issue(issue)
-    get :show, params: {
-      namespace_id: project.namespace.to_param,
-      project_id: project,
-      id: issue.to_param
-    }
-
-    expect(response).to be_successful
-  end
-end

spec/frontend/fixtures/issues.rb

@@ -45,12 +45,6 @@ RSpec.describe Projects::IssuesController, '(JavaScript fixtures)', type: :contr
     render_issue(issue)
   end
 
-  it 'issues/issue_with_comment.html' do
-    issue = create(:issue, project: project)
-    create(:note, project: project, noteable: issue, note: '- [ ] Task List Item').save
-    render_issue(issue)
-  end
-
   it 'issues/issue_list.html' do
     create(:issue, project: project)