Simplify logic

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -1876,15 +1876,13 @@ namespace Emby.Server.Implementations.Library
             }
 
             var outdated = forceUpdate ? item.ImageInfos.Where(i => i.Path != null).ToArray() : item.ImageInfos.Where(ImageNeedsRefresh).ToArray();
-            if (outdated.Length == 0)
+            // Skip image processing if current or live tv source
+            if (outdated.Length == 0 || item.SourceType != SourceType.Library)
             {
                 RegisterItem(item);
                 return;
             }
 
-            // Skip image processing for live tv
-            if (item.SourceType == SourceType.Library)
-            {
             foreach (var img in outdated)
             {
                 var image = img;
@@ -1940,7 +1938,6 @@ namespace Emby.Server.Implementations.Library
                     _logger.LogError(ex, "Cannot update DateModified for {0}", image.Path);
                 }
             }
-            }
 
             _itemRepository.SaveImages(item);
             RegisterItem(item);