Update IServiceCollectionExtensionsTests.cs

Signed-off-by: Neil South <[email protected]>

Author: neildsouth

src/Messaging/Tests/IServiceCollectionExtensionsTests.cs

@@ -207,10 +207,6 @@ internal class GoodSubscriberService : IMessageBrokerSubscriberService
 
         // event used by users of this library
         public event ConnectionErrorHandler? OnConnectionError;
-#pragma warning restore CS0067 // The event 'GoodSubscriberService.OnConnectionError' is never used
-
-#pragma warning restore CS0067 // The event 'GoodSubscriberService.OnConnectionError' is never used
-
 #pragma warning restore CS0067 // The event 'GoodSubscriberService.OnConnectionError' is never used
 
         public void Acknowledge(MessageBase message) => throw new NotImplementedException();