Remove redundant read-only VV from datafields (#12626)

Content.Shared/Materials/MaterialPrototype.cs

@@ -27,11 +27,9 @@ namespace Content.Shared.Materials
         [IdDataFieldAttribute]
         public string ID { get; } = default!;
 
-        [ViewVariables]
         [DataField("stack", customTypeSerializer:typeof(PrototypeIdSerializer<StackPrototype>))]
         public string? StackId { get; } = null;
 
-        [ViewVariables]
         [DataField("name")]
         public string Name
         {
@@ -39,14 +37,12 @@ namespace Content.Shared.Materials
             private set => _name = Loc.GetString(value);
         }
 
-        [ViewVariables]
         [DataField("color")]
         public Color Color { get; } = Color.Gray;
 
         /// <summary>
         ///     An icon used to represent the material in graphic interfaces.
         /// </summary>
-        [ViewVariables]
         [DataField("icon")]
         public SpriteSpecifier Icon { get; } = SpriteSpecifier.Invalid;