don't keep retrying when metadata not found

MediaBrowser.Providers/Manager/MetadataService.cs

@@ -138,7 +138,7 @@ namespace MediaBrowser.Providers.Manager
                 }
             }
 
-            var isFirstRefresh = GetLastRefreshDate(item) == default(DateTime);
+            var isFirstRefresh = item.DateLastRefreshed == default(DateTime);
 
             var beforeSaveResult = await BeforeSave(itemOfType, isFirstRefresh || refreshOptions.ReplaceAllMetadata || refreshOptions.MetadataRefreshMode == MetadataRefreshMode.FullRefresh || requiresRefresh, updateType).ConfigureAwait(false);
             updateType = updateType | beforeSaveResult;
@@ -193,11 +193,6 @@ namespace MediaBrowser.Providers.Manager
             lookupInfo.Year = result.ProductionYear;
         }
 
-        private DateTime GetLastRefreshDate(IHasMetadata item)
-        {
-            return item.DateLastRefreshed;
-        }
-
         protected async Task SaveItem(MetadataResult<TItemType> result, ItemUpdateType reason, CancellationToken cancellationToken)
         {
             if (result.Item.SupportsPeople && result.People != null)
@@ -652,7 +647,6 @@ namespace MediaBrowser.Providers.Manager
                     }
                     else
                     {
-                        refreshResult.Failures++;
                         Logger.Debug("{0} returned no metadata for {1}", providerName, logName);
                     }
                 }