DLP: Remove nikitapodguzov@ from DLP owners

Change-Id: I0cb3fe2f421d8c4f34cc5cecc8c6b393bd326e24
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2603746
Commit-Queue: Nikita Podguzov <nikitapodguzov@chromium.org>
Commit-Queue: Sergey Poromov <poromov@chromium.org>
Reviewed-by: Sergey Poromov <poromov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#839434}

chrome/browser/chromeos/policy/dlp/OWNERS

 ayaelattar@chromium.org
-nikitapodguzov@chromium.org
 poromov@chromium.org