remove UnobservedTaskExceptionHandler

Author: kdcllc

src/CronScheduler.Extensions/DependencyInjection/SchedulerBuilder.cs

@@ -10,9 +10,6 @@ namespace Microsoft.Extensions.DependencyInjection
 {
     public class SchedulerBuilder
     {
-        [Obsolete("User AddUnobservedTaskExceptionHandler() instead")]
-        public EventHandler<UnobservedTaskExceptionEventArgs>? UnobservedTaskExceptionHandler;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="SchedulerBuilder"/> class.
         /// </summary>

src/CronScheduler.Extensions/DependencyInjection/SchedulerServiceCollectionExtensions.cs

@@ -67,7 +67,7 @@ public static IServiceCollection AddScheduler(this IServiceCollection services,
         var builder = new SchedulerBuilder(services);
         config(builder);
 
-        CreateInstance(builder.Services, sp => builder.UnobservedTaskExceptionHandler ?? builder.CreateUnobservedTaskExceptionHandler?.Invoke(sp));
+        CreateInstance(builder.Services, sp => builder.CreateUnobservedTaskExceptionHandler?.Invoke(sp));
 
         return builder.Services;
     }

test/CronScheduler.UnitTest/SchedulerFuncTests.cs

@@ -170,7 +170,7 @@ public async Task Job_RunImmediately_Configuration_Successfully()
                 It.Is<It.IsAnyType>((object v, Type _) => v.ToString()!.Contains(nameof(TestJob))),
                 It.IsAny<Exception>(),
                 It.Is<Func<object, Exception?, string>>((v, t) => true)),
-                Times.Between(1, 2, Range.Inclusive));
+                Times.Between(1, 3, Range.Inclusive));
     }
 
     [Fact]