update samples

samples/Sample.Kafka.MySql/Controllers/ValuesController.cs

@@ -26,7 +26,7 @@ namespace Sample.Kafka.MySql.Controllers
 
                 //your business code here
 
-                await _capBus.PublishAsync("xxx.xxx.test2", 123456, transaction);
+                await _capBus.PublishAsync("xxx.xxx.test2", 123456);
 
                 transaction.Commit();
             }

samples/Sample.Kafka.MySql/Startup.cs

@@ -21,8 +21,6 @@ namespace Sample.Kafka.MySql
         public void Configure(IApplicationBuilder app)
         {
             app.UseMvc();
-
-            app.UseCap();
         }
     }
 }