Single-use class should be private

SabreTools.Core/BaseFirstContractResolver.cs

@@ -1,33 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-using Newtonsoft.Json;
-using Newtonsoft.Json.Serialization;
-
-namespace SabreTools.Core
-{
-    // https://github.com/dotnet/runtime/issues/728
-    public class BaseFirstContractResolver : DefaultContractResolver
-    {
-        public BaseFirstContractResolver()
-        {
-            NamingStrategy = new CamelCaseNamingStrategy();
-        }
-
-        protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
-        {
-            return base.CreateProperties(type, memberSerialization)
-                .OrderBy(p => BaseTypesAndSelf(p.DeclaringType).Count()).ToList();
-
-            IEnumerable<Type> BaseTypesAndSelf(Type t)
-            {
-                while (t != null)
-                {
-                    yield return t;
-                    t = t.BaseType;
-                }
-            }
-        }
-    }
-}