REmoves null checks on PropertyData since this causes exceptions when creating this object and deserializing to this object

src/Umbraco.Web/PublishedCache/NuCache/DataSource/PropertyData.cs

@@ -5,22 +5,11 @@ namespace Umbraco.Web.PublishedCache.NuCache.DataSource
 {
     internal class PropertyData
     {
-        private string _culture;
-        private string _segment;
-
         [JsonProperty("culture")]
-        public string Culture
-        {
-            get => _culture;
-            set => _culture = value ?? throw new ArgumentNullException(nameof(value));
-        }
+        public string Culture { get; set; }
 
         [JsonProperty("seg")]
-        public string Segment
-        {
-            get => _segment;
-            set => _segment = value ?? throw new ArgumentNullException(nameof(value));
-        }
+        public string Segment { get; set; }
 
         [JsonProperty("val")]
         public object Value { get; set; }