Epic Boards - Add Boards navigation item under Epics

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ee/app/controllers/groups/epic_boards_controller.rb

 # frozen_string_literal: true
 class Groups::EpicBoardsController < Groups::BoardsController
   include BoardsActions
+
   before_action :authorize_read_board!, only: [:index]
+
   def authorize_read_board!
-    access_denied! unless can?(current_user, :read_epic_board, group)
+    access_denied! unless Feature.enabled?(:epic_boards, group) && can?(current_user, :read_epic_board, group)
   end
 end

ee/config/routes/group.rb

@@ -11,8 +11,6 @@ constraints(::Constraints::GroupUrlConstrainer.new) do
       patch :override, on: :member
     end
 
-    get '/epics/boards', to: redirect('groups/%{group_id}/-/epic_boards')
-
     get '/analytics', to: redirect('groups/%{group_id}/-/analytics/value_stream_analytics')
     resource :contribution_analytics, only: [:show]
 
@@ -114,10 +112,6 @@ constraints(::Constraints::GroupUrlConstrainer.new) do
         resources :notes, only: [:index, :create, :destroy, :update], concerns: :awardable, constraints: { id: /\d+/ }
       end
 
-      collection do
-        resources :boards, only: [:index, :show], as: 'epic_boards'
-      end
-
       collection do
         post :bulk_update
       end
@@ -144,9 +138,7 @@ constraints(::Constraints::GroupUrlConstrainer.new) do
       end
     end
 
-    resources :epic_boards, only: [:index] do
-      resources :lists, module: :boards, only: [:index]
-    end
+    resources :epic_boards, only: [:index]
 
     namespace :security do
       resource :dashboard, only: [:show], controller: :dashboard