Fix TplEventSource diagnostic error due to mismatched signature

Fix TplEventSource diagnostic error due to mismatched signature

The TplEventSource TaskWaitBegin event is defined to take an int appDomain parameter, but it's not tracing that out, resulting in EventSource generating diagnostic events about 6 parameters being expected but only getting 5 arguments.

I've fixed it by removing the appDomain parameter, since it's not relevant to coreclr.

Commit migrated from https://github.com/dotnet/coreclr/commit/afc76a84848bcf81edd6556dec407a61c07e3c6d