Duplicate exceptions from Ilogger + RequestTrackingModule #861

When an exception is thrown from Controller, RequestTrackingModule reports it.
https://github.com/Microsoft/ApplicationInsights-aspnetcore/blob/develop/src/Microsoft.ApplicationInsights.AspNetCore/DiagnosticListeners/Implementation/HostingDiagnosticListener.cs#L480

Since ILogger is also enabled by default now, it also captures this exception.

Repro Steps

1. Use any WebAPI app, and throw unhandled exception from controller.

Actual Behavior

2 exception telemetry, 1 from Ilogger, 1 from request tracking module

Expected Behavior

1

Version Info

SDK Version :
.NET Version :
How Application was onboarded with SDK(VisualStudio/StatusMonitor/Azure Extension) :
OS :
Hosting Info (IIS/Azure WebApps/ etc) :