remove pause hack (its a Core issue, being looked at - umbraco/Umbraco-CMS#17550)

Author: KevinJump

uSync.BackOffice/SyncHandlers/Handlers/ContentTypeBaseHandler.cs

@@ -36,13 +36,4 @@ protected ContentTypeBaseHandler(
         ISyncItemFactory syncItemFactory)
         : base(logger, entityService, appCaches, shortStringHelper, syncFileService, mutexService, uSyncConfig, syncItemFactory)
     { }
-
-    public override async Task HandleAsync(SavingNotification<TObject> notification, CancellationToken cancellationToken)
-    {
-        // this is a hack fix, while we look into it, 
-        // deeply suspect there is a lock in the core :( 
-        Thread.Sleep(75);
-        await base.HandleAsync(notification, cancellationToken);
-    }
-
 }