1 files changed, 0 insertions, 154 deletions
diff --git a/src/mscorlib/src/System/OperatingSystem.cs b/src/mscorlib/src/System/OperatingSystem.cs
deleted file mode 100644
index 5eb1253fa5..0000000000
--- a/src/mscorlib/src/System/OperatingSystem.cs
+++ /dev/null
@@ -1,154 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-/*============================================================
-**
-**
-**
-** Purpose: 
-**
-**
-===========================================================*/
-
-using System.Runtime.Serialization;
-using System.Globalization;
-using System.Runtime.InteropServices;
-using System.Diagnostics.Contracts;
-
-namespace System
-{
-    [Serializable]
-    internal sealed class OperatingSystem : ICloneable, ISerializable
-    {
-        private Version _version;
-        private PlatformID _platform;
-        private string _servicePack;
-        private string _versionString;
-
-        private OperatingSystem()
-        {
-        }
-
-        internal OperatingSystem(PlatformID platform, Version version, string servicePack)
-        {
-            if (platform < PlatformID.Win32S || platform > PlatformID.MacOSX)
-            {
-                throw new ArgumentException(
-                    SR.Format(SR.Arg_EnumIllegalVal, (int)platform),
-                    nameof(platform));
-            }
-
-            if ((Object)version == null)
-                throw new ArgumentNullException(nameof(version));
-            Contract.EndContractBlock();
-
-            _platform = platform;
-            _version = (Version)version.Clone();
-            _servicePack = servicePack;
-        }
-
-        private OperatingSystem(SerializationInfo info, StreamingContext context)
-        {
-            SerializationInfoEnumerator enumerator = info.GetEnumerator();
-            while (enumerator.MoveNext())
-            {
-                switch (enumerator.Name)
-                {
-                    case "_version":
-                        _version = (Version)info.GetValue("_version", typeof(Version));
-                        break;
-                    case "_platform":
-                        _platform = (PlatformID)info.GetValue("_platform", typeof(PlatformID));
-                        break;
-                    case "_servicePack":
-                        _servicePack = info.GetString("_servicePack");
-                        break;
-                }
-            }
-
-            if (_version == null)
-            {
-                throw new SerializationException(SR.Format(SR.Serialization_MissField, "_version"));
-            }
-        }
-
-        public void GetObjectData(SerializationInfo info, StreamingContext context)
-        {
-            if (info == null)
-            {
-                throw new ArgumentNullException(nameof(info));
-            }
-            Contract.EndContractBlock();
-
-            info.AddValue("_version", _version);
-            info.AddValue("_platform", _platform);
-            info.AddValue("_servicePack", _servicePack);
-        }
-
-        public Version Version
-        {
-            get { return _version; }
-        }
-
-        public Object Clone()
-        {
-            return new OperatingSystem(_platform,
-                                       _version, _servicePack);
-        }
-
-        public override String ToString()
-        {
-            return VersionString;
-        }
-
-        public String VersionString
-        {
-            get
-            {
-                if (_versionString != null)
-                {
-                    return _versionString;
-                }
-
-                String os;
-                switch (_platform)
-                {
-                    case PlatformID.Win32NT:
-                        os = "Microsoft Windows NT ";
-                        break;
-                    case PlatformID.Win32Windows:
-                        if ((_version.Major > 4) ||
-                            ((_version.Major == 4) && (_version.Minor > 0)))
-                            os = "Microsoft Windows 98 ";
-                        else
-                            os = "Microsoft Windows 95 ";
-                        break;
-                    case PlatformID.Win32S:
-                        os = "Microsoft Win32S ";
-                        break;
-                    case PlatformID.WinCE:
-                        os = "Microsoft Windows CE ";
-                        break;
-                    case PlatformID.MacOSX:
-                        os = "Mac OS X ";
-                        break;
-                    default:
-                        os = "<unknown> ";
-                        break;
-                }
-
-                if (String.IsNullOrEmpty(_servicePack))
-                {
-                    _versionString = os + _version.ToString();
-                }
-                else
-                {
-                    _versionString = os + _version.ToString(3) + " " + _servicePack;
-                }
-
-                return _versionString;
-            }
-        }
-    }
-}