Removed planning hierarchy from left nav

lib/sidebars/concerns/work_item_hierarchy.rb

-# frozen_string_literal: true
-
-# This module has the necessary methods to render
-# work items hierarchy menu
-module Sidebars
-  module Concerns
-    module WorkItemHierarchy
-      def hierarchy_menu_item(container, url, path)
-        unless show_hierarachy_menu_item?(container)
-          return ::Sidebars::NilMenuItem.new(item_id: :hierarchy)
-        end
-
-        ::Sidebars::MenuItem.new(
-          title: _('Planning hierarchy'),
-          link: url,
-          active_routes: { path: path },
-          item_id: :hierarchy
-        )
-      end
-
-      def show_hierarachy_menu_item?(container)
-        can?(context.current_user, :read_planning_hierarchy, container)
-      end
-    end
-  end
-end

lib/sidebars/projects/menus/project_information_menu.rb

@@ -4,13 +4,10 @@ module Sidebars
   module Projects
     module Menus
       class ProjectInformationMenu < ::Sidebars::Menu
-        include ::Sidebars::Concerns::WorkItemHierarchy
-
         override :configure_menu_items
         def configure_menu_items
           add_item(activity_menu_item)
           add_item(labels_menu_item)
-          add_item(hierarchy_menu_item(context.project, project_planning_hierarchy_path(context.project), 'projects#planning_hierarchy'))
           add_item(members_menu_item)
 
           true

spec/lib/sidebars/concerns/work_item_hierarchy_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe Sidebars::Concerns::WorkItemHierarchy do
-  shared_examples 'hierarchy menu' do
-    let(:item_id) { :hierarchy }
-    specify { is_expected.not_to be_nil }
-  end
-
-  describe 'Project hierarchy menu item' do
-    let_it_be_with_reload(:project) { create(:project, :repository) }
-
-    let(:user) { project.owner }
-    let(:context) { Sidebars::Projects::Context.new(current_user: user, container: project) }
-
-    subject { Sidebars::Projects::Menus::ProjectInformationMenu.new(context).renderable_items.index { |e| e.item_id == item_id } }
-
-    it_behaves_like 'hierarchy menu'
-  end
-end

spec/lib/sidebars/projects/menus/project_information_menu_spec.rb

@@ -59,11 +59,5 @@ RSpec.describe Sidebars::Projects::Menus::ProjectInformationMenu do
         specify { is_expected.to be_nil }
       end
     end
-
-    describe 'Hierarchy' do
-      let(:item_id) { :hierarchy }
-
-      specify { is_expected.not_to be_nil }
-    end
   end
 end

spec/support/shared_contexts/navbar_structure_context.rb

@@ -22,7 +22,6 @@ RSpec.shared_context 'project navbar structure' do
         nav_sub_items: [
           _('Activity'),
           _('Labels'),
-          _('Planning hierarchy'),
           _('Members')
         ]
       },