Update to 3.5.2 and .net core 2.1

MediaBrowser.Model/Querying/SimilarItemsQuery.cs

@@ -1,29 +0,0 @@
-namespace MediaBrowser.Model.Querying
-{
-    public class SimilarItemsQuery
-    {
-        /// <summary>
-        /// The user to localize search results for
-        /// </summary>
-        /// <value>The user id.</value>
-        public string UserId { get; set; }
-
-        /// <summary>
-        /// Gets or sets the id.
-        /// </summary>
-        /// <value>The id.</value>
-        public string Id { get; set; }
-
-        /// <summary>
-        /// The maximum number of items to return
-        /// </summary>
-        /// <value>The limit.</value>
-        public int? Limit { get; set; }
-
-        /// <summary>
-        /// Fields to return within the items, in addition to basic information
-        /// </summary>
-        /// <value>The fields.</value>
-        public ItemFields[] Fields { get; set; }
-    }
-}