Elastic.Apm.NLog - Replace unnecessary null-check for Agent.Tracer

[snakefoot]

[apmmachine]

:green_heart: Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2023-01-16T15:22:05.028+0000

• Duration: 12 min 13 sec

Test stats :test_tube:

Test	Results
Failed	0
Passed	174
Skipped	2
Total	176

:robot: GitHub comments

Expand to view the GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)

[Mpdreamz]

Jenkins run tests please