minor

Author: arturcic

src/GitVersionCore/OutputVariables/VersionVariables.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Globalization;
 using System.IO;
 using System.Linq;
 using YamlDotNet.Serialization;