disable groups profile page (Account#canvas_network_enabled?)

Change-Id: Ia06b309981d2d4e23dab8dd199c1c0840e1090bf

app/controllers/groups_controller.rb

@@ -545,8 +545,8 @@ class GroupsController < ApplicationController
   end
 
   def profile
-    # FIXME: use backend setting for this instead of user preference
-    raise ActiveRecord::RecordNotFound unless show_new_dashboard?
+    account = @context.root_account
+    raise ActiveRecord::RecordNotFound unless account.canvas_network_enabled?
 
     @use_new_styles = true
     @active_tab = 'profile'

app/models/account.rb

@@ -1013,4 +1013,8 @@ class Account < ActiveRecord::Base
   named_scope :limit, lambda {|limit|
     {:limit => limit}
   }
+
+  def canvas_network_enabled?
+    false
+  end
 end