X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/12bfd7a65c6635a882cb2e5e419321db100b9d56..a8bfbac314335eb0bff3f4ff5e856d3c327de31d:/services/api/app/models/link.rb

diff --git a/services/api/app/models/link.rb b/services/api/app/models/link.rb
index 24872b21ec..dc961667b0 100644
--- a/services/api/app/models/link.rb
+++ b/services/api/app/models/link.rb
@@ -1,3 +1,7 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 class Link < ArvadosModel
   include HasUuid
   include KindAndEtag
@@ -8,7 +12,6 @@ class Link < ArvadosModel
   after_update :maybe_invalidate_permissions_cache
   after_create :maybe_invalidate_permissions_cache
   after_destroy :maybe_invalidate_permissions_cache
-  attr_accessor :head_kind, :tail_kind
   validate :name_links_are_obsolete
 
   api_accessible :user, extend: :common do |t|
@@ -21,11 +24,6 @@ class Link < ArvadosModel
     t.add :properties
   end
 
-  def properties
-    @properties ||= Hash.new
-    super
-  end
-
   def head_kind
     if k = ArvadosModel::resource_class_for_uuid(head_uuid)
       k.kind