Cleanup, fix tests

src/Umbraco.Core/Models/PublishedContent/IPublishedValueFallback.cs

@@ -5,31 +5,10 @@
     /// </summary>
     public interface IPublishedValueFallback
     {
-        /// <summary>
-        /// Gets a value.
-        /// </summary>
-        /// <remarks>
-        /// <para>This is invoked when getting a value for the specified <paramref name="culture"/> and <paramref name="segment"/>
-        /// could not return a value, and fallback rules should apply to get the value for another language and/or segment.</para>
-        /// </remarks>
-        TValue GetValue<TValue>(IPublishedProperty property, string culture, string segment);
-    }
+        // todo - define & implement
 
-    // fixme question
-    // this is working at property level at the moment, should we move it up to element,
-    // so that the decision can be made based upon the entire element, other properties, etc?
-    // or, would we need the *two* levels?
-
-    /// <summary>
-    /// Provides a default implementation of <see cref="IPublishedValueFallback"/> that does not fall back at all.
-    /// </summary>
-    public class NoPublishedValueFallback : IPublishedValueFallback
-    {
-        /// <inheritdoc />
-        public TValue GetValue<TValue>(IPublishedProperty property, string culture, string segment)
-        {
-            // we don't implement fallback
-            return default;
-        }
+        // property level ... should we move it up to element,
+        // so that the decision can be made based upon the entire element, other properties, etc?
+        // or, would we need the *two* levels?
     }
 }