Optimize tryparse

* Don't check for null before
* Don't try different formats when not needed (NumberFormat.Integer is the fast path)

MediaBrowser.Providers/Manager/MetadataService.cs

@@ -151,7 +151,6 @@ namespace MediaBrowser.Providers.Manager
                         ApplySearchResult(id, refreshOptions.SearchResult);
                     }
 
-                    // await FindIdentities(id, cancellationToken).ConfigureAwait(false);
                     id.IsAutomated = refreshOptions.IsAutomated;
 
                     var result = await RefreshWithProviders(metadataResult, id, refreshOptions, providers, ImageProvider, cancellationToken).ConfigureAwait(false);