Remove scroggo@ from OWNERS

Leon has left Google.

Fixed: 421950215
Change-Id: I6a77083d59effac90a3c5684592173053ea87e5f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6614880
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Nigel Tao <nigeltao@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Kalvin Lee <kdlee@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1469185}
NOKEYCHECK=True
GitOrigin-RevId: 5a13ffa35daa28484c43b4a2c3549b7651051cc4