Remove reduntant note validation from create service

app/services/notes/create_service.rb

@@ -5,8 +5,6 @@ module Notes
       note.author = current_user
       note.system = false
 
-      return unless valid_project?(note)
-
       if note.save
         # Finish the harder work in the background
         NewNoteWorker.perform_in(2.seconds, note.id, params)
@@ -15,14 +13,5 @@ module Notes
 
       note
     end
-
-    private
-
-    def valid_project?(note)
-      return false unless project
-      return true if note.for_commit?
-
-      note.noteable.try(:project) == project
-    end
   end
 end