1 files changed, 0 insertions, 40 deletions
diff --git a/activemodel/lib/active_model/mass_assignment_security/permission_set.rb b/activemodel/lib/active_model/mass_assignment_security/permission_set.rb
deleted file mode 100644
index f104d0306c..0000000000
--- a/activemodel/lib/active_model/mass_assignment_security/permission_set.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-require 'set'
-
-module ActiveModel
-  module MassAssignmentSecurity
-    class PermissionSet < Set #:nodoc:
-
-      def +(values)
-        super(values.compact.map(&:to_s))
-      end
-
-      def include?(key)
-        super(remove_multiparameter_id(key))
-      end
-
-      def deny?(key)
-        raise NotImplementedError, "#deny?(key) supposed to be overwritten"
-      end
-
-    protected
-
-      def remove_multiparameter_id(key)
-        key.to_s.gsub(/\(.+/, '')
-      end
-    end
-
-    class WhiteList < PermissionSet #:nodoc:
-
-      def deny?(key)
-        !include?(key)
-      end
-    end
-
-    class BlackList < PermissionSet #:nodoc:
-
-      def deny?(key)
-        include?(key)
-      end
-    end
-  end
-end