removed unused attributes

MediaBrowser.Model/Entities/ParentalRating.cs

@@ -1,25 +1,21 @@
-using ProtoBuf;
-
+
 namespace MediaBrowser.Model.Entities
 {
     /// <summary>
     /// Class ParentalRating
     /// </summary>
-    [ProtoContract]
     public class ParentalRating
     {
         /// <summary>
         /// Gets or sets the name.
         /// </summary>
         /// <value>The name.</value>
-        [ProtoMember(1)]
         public string Name { get; set; }
 
         /// <summary>
         /// Gets or sets the value.
         /// </summary>
         /// <value>The value.</value>
-        [ProtoMember(2)]
         public int Value { get; set; }
     }
 }