Remove protobuf decorators from LibreMetaverse.Types. It's doubtful that anyone is using it. R.I.P. Halcyon

LibreMetaverseTypes/Vector3.cs

@@ -27,7 +27,6 @@
 using System;
 using System.Runtime.InteropServices;
 using System.Globalization;
-using ProtoBuf;
 
 namespace OpenMetaverse
 {
@@ -36,19 +35,15 @@ namespace OpenMetaverse
     /// </summary>
     [Serializable]
     [StructLayout(LayoutKind.Sequential)]
-    [ProtoContract]
     public struct Vector3 : IComparable<Vector3>, IEquatable<Vector3>
     {
         /// <summary>X value</summary>
-        [ProtoMember(1)]
         public float X;
 
         /// <summary>Y value</summary>
-        [ProtoMember(2)]
         public float Y;
 
         /// <summary>Z value</summary>
-        [ProtoMember(3)]
         public float Z;
 
         #region Constructors